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Finding the Fourth Proportional to 515,382.92, 711,547.44 and 343,543.04

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Solution

The fourth proportional to 515,382.92, 711,547.44 and 343,543.04 is: 474,302.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,382.92 : 711,547.44 = 343,543.04 : x
  2. Step 2: Convert to fraction form
    515,382.92/711,547.44 = 343,543.04/x
  3. Step 3: Cross multiply
    515,382.92x = 711,547.44 × 343,543.04
  4. Step 4: Simplify right side
    515,382.92x = 244,447,170,641.82
  5. Step 5: Solve for x
    x = 244,447,170,641.82/515,382.92
  6. Step 6: Final answer
    x = 474,302.04

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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.