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Finding the Fourth Proportional to 530,700, 732,355.52 and 288,985.52

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Solution

The fourth proportional to 530,700, 732,355.52 and 288,985.52 is: 398,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,700 : 732,355.52 = 288,985.52 : x
  2. Step 2: Convert to fraction form
    530,700/732,355.52 = 288,985.52/x
  3. Step 3: Cross multiply
    530,700x = 732,355.52 × 288,985.52
  4. Step 4: Simplify right side
    530,700x = 211,640,140,772.07
  5. Step 5: Solve for x
    x = 211,640,140,772.07/530,700
  6. Step 6: Final answer
    x = 398,794.31

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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.