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Finding the Fourth Proportional to 530,663.52, 732,298.46 and 288,944.12

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Solution

The fourth proportional to 530,663.52, 732,298.46 and 288,944.12 is: 398,733.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,663.52 : 732,298.46 = 288,944.12 : x
  2. Step 2: Convert to fraction form
    530,663.52/732,298.46 = 288,944.12/x
  3. Step 3: Cross multiply
    530,663.52x = 732,298.46 × 288,944.12
  4. Step 4: Simplify right side
    530,663.52x = 211,593,334,102.06
  5. Step 5: Solve for x
    x = 211,593,334,102.06/530,663.52
  6. Step 6: Final answer
    x = 398,733.52

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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.