Home / 942,191.52-1,300,211.76-512,462.40

Finding the Fourth Proportional to 942,191.52, 1,300,211.76 and 512,462.40

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Solution

The fourth proportional to 942,191.52, 1,300,211.76 and 512,462.40 is: 707,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,191.52 : 1,300,211.76 = 512,462.40 : x
  2. Step 2: Convert to fraction form
    942,191.52/1,300,211.76 = 512,462.40/x
  3. Step 3: Cross multiply
    942,191.52x = 1,300,211.76 × 512,462.40
  4. Step 4: Simplify right side
    942,191.52x = 666,309,639,037.82
  5. Step 5: Solve for x
    x = 666,309,639,037.82/942,191.52
  6. Step 6: Final answer
    x = 707,191.29

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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.