Home / 1,258,689.40-1,888,034.10-360,160.45

Finding the Fourth Proportional to 1,258,689.40, 1,888,034.10 and 360,160.45

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Solution

The fourth proportional to 1,258,689.40, 1,888,034.10 and 360,160.45 is: 540,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,689.40 : 1,888,034.10 = 360,160.45 : x
  2. Step 2: Convert to fraction form
    1,258,689.40/1,888,034.10 = 360,160.45/x
  3. Step 3: Cross multiply
    1,258,689.40x = 1,888,034.10 × 360,160.45
  4. Step 4: Simplify right side
    1,258,689.40x = 679,995,211,071.35
  5. Step 5: Solve for x
    x = 679,995,211,071.35/1,258,689.40
  6. Step 6: Final answer
    x = 540,240.68

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.