Home / 749,345.10-1,124,017.65-670,613.10

Finding the Fourth Proportional to 749,345.10, 1,124,017.65 and 670,613.10

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Solution

The fourth proportional to 749,345.10, 1,124,017.65 and 670,613.10 is: 1,005,919.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,345.10 : 1,124,017.65 = 670,613.10 : x
  2. Step 2: Convert to fraction form
    749,345.10/1,124,017.65 = 670,613.10/x
  3. Step 3: Cross multiply
    749,345.10x = 1,124,017.65 × 670,613.10
  4. Step 4: Simplify right side
    749,345.10x = 753,780,960,721.22
  5. Step 5: Solve for x
    x = 753,780,960,721.22/749,345.10
  6. Step 6: Final answer
    x = 1,005,919.65

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Double scale
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Similar ratio
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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.