Home / 2,686,421.40-4,029,632.10-889,582.20

Finding the Fourth Proportional to 2,686,421.40, 4,029,632.10 and 889,582.20

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Solution

The fourth proportional to 2,686,421.40, 4,029,632.10 and 889,582.20 is: 1,334,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686,421.40 : 4,029,632.10 = 889,582.20 : x
  2. Step 2: Convert to fraction form
    2,686,421.40/4,029,632.10 = 889,582.20/x
  3. Step 3: Cross multiply
    2,686,421.40x = 4,029,632.10 × 889,582.20
  4. Step 4: Simplify right side
    2,686,421.40x = 3,584,688,988,708.62
  5. Step 5: Solve for x
    x = 3,584,688,988,708.62/2,686,421.40
  6. Step 6: Final answer
    x = 1,334,373.30

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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.