Home / 689,931.70-1,034,897.55-240,503.20

Finding the Fourth Proportional to 689,931.70, 1,034,897.55 and 240,503.20

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Solution

The fourth proportional to 689,931.70, 1,034,897.55 and 240,503.20 is: 360,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,931.70 : 1,034,897.55 = 240,503.20 : x
  2. Step 2: Convert to fraction form
    689,931.70/1,034,897.55 = 240,503.20/x
  3. Step 3: Cross multiply
    689,931.70x = 1,034,897.55 × 240,503.20
  4. Step 4: Simplify right side
    689,931.70x = 248,896,172,447.16
  5. Step 5: Solve for x
    x = 248,896,172,447.16/689,931.70
  6. Step 6: Final answer
    x = 360,754.80

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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.