Home / 849,854.60-1,274,781.90-288,889.10

Finding the Fourth Proportional to 849,854.60, 1,274,781.90 and 288,889.10

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Solution

The fourth proportional to 849,854.60, 1,274,781.90 and 288,889.10 is: 433,333.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,854.60 : 1,274,781.90 = 288,889.10 : x
  2. Step 2: Convert to fraction form
    849,854.60/1,274,781.90 = 288,889.10/x
  3. Step 3: Cross multiply
    849,854.60x = 1,274,781.90 × 288,889.10
  4. Step 4: Simplify right side
    849,854.60x = 368,270,595,787.29
  5. Step 5: Solve for x
    x = 368,270,595,787.29/849,854.60
  6. Step 6: Final answer
    x = 433,333.65

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Double scale
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Similar ratio
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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.