Home / 530,447.18-732,036.42-288,718.07

Finding the Fourth Proportional to 530,447.18, 732,036.42 and 288,718.07

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Solution

The fourth proportional to 530,447.18, 732,036.42 and 288,718.07 is: 398,441.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,447.18 : 732,036.42 = 288,718.07 : x
  2. Step 2: Convert to fraction form
    530,447.18/732,036.42 = 288,718.07/x
  3. Step 3: Cross multiply
    530,447.18x = 732,036.42 × 288,718.07
  4. Step 4: Simplify right side
    530,447.18x = 211,352,138,691.93
  5. Step 5: Solve for x
    x = 211,352,138,691.93/530,447.18
  6. Step 6: Final answer
    x = 398,441.44

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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.