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Finding the Fourth Proportional to 530,657.26, 732,300.15 and 288,937.06

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Solution

The fourth proportional to 530,657.26, 732,300.15 and 288,937.06 is: 398,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,657.26 : 732,300.15 = 288,937.06 : x
  2. Step 2: Convert to fraction form
    530,657.26/732,300.15 = 288,937.06/x
  3. Step 3: Cross multiply
    530,657.26x = 732,300.15 × 288,937.06
  4. Step 4: Simplify right side
    530,657.26x = 211,588,652,378.56
  5. Step 5: Solve for x
    x = 211,588,652,378.56/530,657.26
  6. Step 6: Final answer
    x = 398,729.40

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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.