Home / 1,038,292.81-1,557,547.88-280,140.55

Finding the Fourth Proportional to 1,038,292.81, 1,557,547.88 and 280,140.55

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Solution

The fourth proportional to 1,038,292.81, 1,557,547.88 and 280,140.55 is: 420,240.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,292.81 : 1,557,547.88 = 280,140.55 : x
  2. Step 2: Convert to fraction form
    1,038,292.81/1,557,547.88 = 280,140.55/x
  3. Step 3: Cross multiply
    1,038,292.81x = 1,557,547.88 × 280,140.55
  4. Step 4: Simplify right side
    1,038,292.81x = 436,332,314,459.96
  5. Step 5: Solve for x
    x = 436,332,314,459.96/1,038,292.81
  6. Step 6: Final answer
    x = 420,240.14

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Double scale
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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.