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Finding the Fourth Proportional to 364,550.40, 547,862.40 and 318,931.20

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Solution

The fourth proportional to 364,550.40, 547,862.40 and 318,931.20 is: 479,303.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,550.40 : 547,862.40 = 318,931.20 : x
  2. Step 2: Convert to fraction form
    364,550.40/547,862.40 = 318,931.20/x
  3. Step 3: Cross multiply
    364,550.40x = 547,862.40 × 318,931.20
  4. Step 4: Simplify right side
    364,550.40x = 174,730,412,666.88
  5. Step 5: Solve for x
    x = 174,730,412,666.88/364,550.40
  6. Step 6: Final answer
    x = 479,303.86

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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.