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Finding the Fourth Proportional to 407,598.60, 611,397.90 and 370,200.90

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Solution

The fourth proportional to 407,598.60, 611,397.90 and 370,200.90 is: 555,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,598.60 : 611,397.90 = 370,200.90 : x
  2. Step 2: Convert to fraction form
    407,598.60/611,397.90 = 370,200.90/x
  3. Step 3: Cross multiply
    407,598.60x = 611,397.90 × 370,200.90
  4. Step 4: Simplify right side
    407,598.60x = 226,340,052,838.11
  5. Step 5: Solve for x
    x = 226,340,052,838.11/407,598.60
  6. Step 6: Final answer
    x = 555,301.35

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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.