Home / 726,088.10-1,089,132.15-426,712.10

Finding the Fourth Proportional to 726,088.10, 1,089,132.15 and 426,712.10

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Solution

The fourth proportional to 726,088.10, 1,089,132.15 and 426,712.10 is: 640,068.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,088.10 : 1,089,132.15 = 426,712.10 : x
  2. Step 2: Convert to fraction form
    726,088.10/1,089,132.15 = 426,712.10/x
  3. Step 3: Cross multiply
    726,088.10x = 1,089,132.15 × 426,712.10
  4. Step 4: Simplify right side
    726,088.10x = 464,745,866,904.02
  5. Step 5: Solve for x
    x = 464,745,866,904.02/726,088.10
  6. Step 6: Final answer
    x = 640,068.15

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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.