Home / 438,612.40-658,181.04-402,920.56

Finding the Fourth Proportional to 438,612.40, 658,181.04 and 402,920.56

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Solution

The fourth proportional to 438,612.40, 658,181.04 and 402,920.56 is: 604,621.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,612.40 : 658,181.04 = 402,920.56 : x
  2. Step 2: Convert to fraction form
    438,612.40/658,181.04 = 402,920.56/x
  3. Step 3: Cross multiply
    438,612.40x = 658,181.04 × 402,920.56
  4. Step 4: Simplify right side
    438,612.40x = 265,194,673,218.18
  5. Step 5: Solve for x
    x = 265,194,673,218.18/438,612.40
  6. Step 6: Final answer
    x = 604,621.92

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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.