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Finding the Fourth Proportional to 478,508.79, 716,581.41 and 356,637.14

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Solution

The fourth proportional to 478,508.79, 716,581.41 and 356,637.14 is: 534,074.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,508.79 : 716,581.41 = 356,637.14 : x
  2. Step 2: Convert to fraction form
    478,508.79/716,581.41 = 356,637.14/x
  3. Step 3: Cross multiply
    478,508.79x = 716,581.41 × 356,637.14
  4. Step 4: Simplify right side
    478,508.79x = 255,559,544,639.57
  5. Step 5: Solve for x
    x = 255,559,544,639.57/478,508.79
  6. Step 6: Final answer
    x = 534,074.92

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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.