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Finding the Fourth Proportional to 530,447.68, 732,033.36 and 288,746

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Solution

The fourth proportional to 530,447.68, 732,033.36 and 288,746 is: 398,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,447.68 : 732,033.36 = 288,746 : x
  2. Step 2: Convert to fraction form
    530,447.68/732,033.36 = 288,746/x
  3. Step 3: Cross multiply
    530,447.68x = 732,033.36 × 288,746
  4. Step 4: Simplify right side
    530,447.68x = 211,371,704,566.56
  5. Step 5: Solve for x
    x = 211,371,704,566.56/530,447.68
  6. Step 6: Final answer
    x = 398,477.95

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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.