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Finding the Fourth Proportional to 530,520.96, 732,096.50 and 288,798.50

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Solution

The fourth proportional to 530,520.96, 732,096.50 and 288,798.50 is: 398,529.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,520.96 : 732,096.50 = 288,798.50 : x
  2. Step 2: Convert to fraction form
    530,520.96/732,096.50 = 288,798.50/x
  3. Step 3: Cross multiply
    530,520.96x = 732,096.50 × 288,798.50
  4. Step 4: Simplify right side
    530,520.96x = 211,428,371,055.25
  5. Step 5: Solve for x
    x = 211,428,371,055.25/530,520.96
  6. Step 6: Final answer
    x = 398,529.72

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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.