Home / 458,730.20-688,095.30-409,741.40

Finding the Fourth Proportional to 458,730.20, 688,095.30 and 409,741.40

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Solution

The fourth proportional to 458,730.20, 688,095.30 and 409,741.40 is: 614,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,730.20 : 688,095.30 = 409,741.40 : x
  2. Step 2: Convert to fraction form
    458,730.20/688,095.30 = 409,741.40/x
  3. Step 3: Cross multiply
    458,730.20x = 688,095.30 × 409,741.40
  4. Step 4: Simplify right side
    458,730.20x = 281,941,131,555.42
  5. Step 5: Solve for x
    x = 281,941,131,555.42/458,730.20
  6. Step 6: Final answer
    x = 614,612.10

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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.