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Finding the Fourth Proportional to 530,447.93, 732,037.46 and 288,718.82

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Solution

The fourth proportional to 530,447.93, 732,037.46 and 288,718.82 is: 398,442.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,447.93 : 732,037.46 = 288,718.82 : x
  2. Step 2: Convert to fraction form
    530,447.93/732,037.46 = 288,718.82/x
  3. Step 3: Cross multiply
    530,447.93x = 732,037.46 × 288,718.82
  4. Step 4: Simplify right side
    530,447.93x = 211,352,986,543.22
  5. Step 5: Solve for x
    x = 211,352,986,543.22/530,447.93
  6. Step 6: Final answer
    x = 398,442.48

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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.