Home / 598,904.10-898,356.15-299,430.90

Finding the Fourth Proportional to 598,904.10, 898,356.15 and 299,430.90

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Solution

The fourth proportional to 598,904.10, 898,356.15 and 299,430.90 is: 449,146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,904.10 : 898,356.15 = 299,430.90 : x
  2. Step 2: Convert to fraction form
    598,904.10/898,356.15 = 299,430.90/x
  3. Step 3: Cross multiply
    598,904.10x = 898,356.15 × 299,430.90
  4. Step 4: Simplify right side
    598,904.10x = 268,995,590,515.04
  5. Step 5: Solve for x
    x = 268,995,590,515.04/598,904.10
  6. Step 6: Final answer
    x = 449,146.35

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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.