Home / 851,088.75-1,174,502.48-469,123.74

Finding the Fourth Proportional to 851,088.75, 1,174,502.48 and 469,123.74

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Solution

The fourth proportional to 851,088.75, 1,174,502.48 and 469,123.74 is: 647,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,088.75 : 1,174,502.48 = 469,123.74 : x
  2. Step 2: Convert to fraction form
    851,088.75/1,174,502.48 = 469,123.74/x
  3. Step 3: Cross multiply
    851,088.75x = 1,174,502.48 × 469,123.74
  4. Step 4: Simplify right side
    851,088.75x = 550,986,993,711.26
  5. Step 5: Solve for x
    x = 550,986,993,711.26/851,088.75
  6. Step 6: Final answer
    x = 647,390.76

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Double scale
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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.