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Finding the Fourth Proportional to 459,966.68, 635,045.66 and 315,015.56

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Solution

The fourth proportional to 459,966.68, 635,045.66 and 315,015.56 is: 434,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,966.68 : 635,045.66 = 315,015.56 : x
  2. Step 2: Convert to fraction form
    459,966.68/635,045.66 = 315,015.56/x
  3. Step 3: Cross multiply
    459,966.68x = 635,045.66 × 315,015.56
  4. Step 4: Simplify right side
    459,966.68x = 200,049,264,210.47
  5. Step 5: Solve for x
    x = 200,049,264,210.47/459,966.68
  6. Step 6: Final answer
    x = 434,921.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.