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Finding the Fourth Proportional to 530,463.30, 732,058.74 and 288,734.19

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Solution

The fourth proportional to 530,463.30, 732,058.74 and 288,734.19 is: 398,463.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,463.30 : 732,058.74 = 288,734.19 : x
  2. Step 2: Convert to fraction form
    530,463.30/732,058.74 = 288,734.19/x
  3. Step 3: Cross multiply
    530,463.30x = 732,058.74 × 288,734.19
  4. Step 4: Simplify right side
    530,463.30x = 211,370,387,326.32
  5. Step 5: Solve for x
    x = 211,370,387,326.32/530,463.30
  6. Step 6: Final answer
    x = 398,463.73

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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.