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Finding the Fourth Proportional to 534,267.20, 801,400.80 and 355,516.40

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Solution

The fourth proportional to 534,267.20, 801,400.80 and 355,516.40 is: 533,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,267.20 : 801,400.80 = 355,516.40 : x
  2. Step 2: Convert to fraction form
    534,267.20/801,400.80 = 355,516.40/x
  3. Step 3: Cross multiply
    534,267.20x = 801,400.80 × 355,516.40
  4. Step 4: Simplify right side
    534,267.20x = 284,911,127,373.12
  5. Step 5: Solve for x
    x = 284,911,127,373.12/534,267.20
  6. Step 6: Final answer
    x = 533,274.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.