Home / 740,423.70-1,110,635.55-424,620.90

Finding the Fourth Proportional to 740,423.70, 1,110,635.55 and 424,620.90

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Solution

The fourth proportional to 740,423.70, 1,110,635.55 and 424,620.90 is: 636,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,423.70 : 1,110,635.55 = 424,620.90 : x
  2. Step 2: Convert to fraction form
    740,423.70/1,110,635.55 = 424,620.90/x
  3. Step 3: Cross multiply
    740,423.70x = 1,110,635.55 × 424,620.90
  4. Step 4: Simplify right side
    740,423.70x = 471,599,066,813.00
  5. Step 5: Solve for x
    x = 471,599,066,813.00/740,423.70
  6. Step 6: Final answer
    x = 636,931.35

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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.