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Finding the Fourth Proportional to 536,008.40, 803,321.40 and 410,728.40

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Solution

The fourth proportional to 536,008.40, 803,321.40 and 410,728.40 is: 615,562.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,008.40 : 803,321.40 = 410,728.40 : x
  2. Step 2: Convert to fraction form
    536,008.40/803,321.40 = 410,728.40/x
  3. Step 3: Cross multiply
    536,008.40x = 803,321.40 × 410,728.40
  4. Step 4: Simplify right side
    536,008.40x = 329,946,913,307.76
  5. Step 5: Solve for x
    x = 329,946,913,307.76/536,008.40
  6. Step 6: Final answer
    x = 615,562.95

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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.