Home / 942,680.90-1,300,902.45-512,961.14

Finding the Fourth Proportional to 942,680.90, 1,300,902.45 and 512,961.14

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Solution

The fourth proportional to 942,680.90, 1,300,902.45 and 512,961.14 is: 707,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,680.90 : 1,300,902.45 = 512,961.14 : x
  2. Step 2: Convert to fraction form
    942,680.90/1,300,902.45 = 512,961.14/x
  3. Step 3: Cross multiply
    942,680.90x = 1,300,902.45 × 512,961.14
  4. Step 4: Simplify right side
    942,680.90x = 667,312,403,780.79
  5. Step 5: Solve for x
    x = 667,312,403,780.79/942,680.90
  6. Step 6: Final answer
    x = 707,887.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.