Home / 740,442.20-1,110,663.30-424,639.40

Finding the Fourth Proportional to 740,442.20, 1,110,663.30 and 424,639.40

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Solution

The fourth proportional to 740,442.20, 1,110,663.30 and 424,639.40 is: 636,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,442.20 : 1,110,663.30 = 424,639.40 : x
  2. Step 2: Convert to fraction form
    740,442.20/1,110,663.30 = 424,639.40/x
  3. Step 3: Cross multiply
    740,442.20x = 1,110,663.30 × 424,639.40
  4. Step 4: Simplify right side
    740,442.20x = 471,631,397,314.02
  5. Step 5: Solve for x
    x = 471,631,397,314.02/740,442.20
  6. Step 6: Final answer
    x = 636,959.10

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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.