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Finding the Fourth Proportional to 507,856.56, 700,864.80 and 290,084.16

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Solution

The fourth proportional to 507,856.56, 700,864.80 and 290,084.16 is: 400,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,856.56 : 700,864.80 = 290,084.16 : x
  2. Step 2: Convert to fraction form
    507,856.56/700,864.80 = 290,084.16/x
  3. Step 3: Cross multiply
    507,856.56x = 700,864.80 × 290,084.16
  4. Step 4: Simplify right side
    507,856.56x = 203,309,776,781.57
  5. Step 5: Solve for x
    x = 203,309,776,781.57/507,856.56
  6. Step 6: Final answer
    x = 400,329.13

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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.