Home / 689,753.61-1,034,328.79-347,986.76

Finding the Fourth Proportional to 689,753.61, 1,034,328.79 and 347,986.76

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Solution

The fourth proportional to 689,753.61, 1,034,328.79 and 347,986.76 is: 521,827.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,753.61 : 1,034,328.79 = 347,986.76 : x
  2. Step 2: Convert to fraction form
    689,753.61/1,034,328.79 = 347,986.76/x
  3. Step 3: Cross multiply
    689,753.61x = 1,034,328.79 × 347,986.76
  4. Step 4: Simplify right side
    689,753.61x = 359,932,729,155.52
  5. Step 5: Solve for x
    x = 359,932,729,155.52/689,753.61
  6. Step 6: Final answer
    x = 521,827.98

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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.