Home / 740,439.20-1,110,658.80-424,636.40

Finding the Fourth Proportional to 740,439.20, 1,110,658.80 and 424,636.40

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Solution

The fourth proportional to 740,439.20, 1,110,658.80 and 424,636.40 is: 636,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,439.20 : 1,110,658.80 = 424,636.40 : x
  2. Step 2: Convert to fraction form
    740,439.20/1,110,658.80 = 424,636.40/x
  3. Step 3: Cross multiply
    740,439.20x = 1,110,658.80 × 424,636.40
  4. Step 4: Simplify right side
    740,439.20x = 471,626,154,460.32
  5. Step 5: Solve for x
    x = 471,626,154,460.32/740,439.20
  6. Step 6: Final answer
    x = 636,954.60

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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.