Home / 691,877.80-1,038,011.10-292,709.80

Finding the Fourth Proportional to 691,877.80, 1,038,011.10 and 292,709.80

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Solution

The fourth proportional to 691,877.80, 1,038,011.10 and 292,709.80 is: 439,146.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,877.80 : 1,038,011.10 = 292,709.80 : x
  2. Step 2: Convert to fraction form
    691,877.80/1,038,011.10 = 292,709.80/x
  3. Step 3: Cross multiply
    691,877.80x = 1,038,011.10 × 292,709.80
  4. Step 4: Simplify right side
    691,877.80x = 303,836,021,478.78
  5. Step 5: Solve for x
    x = 303,836,021,478.78/691,877.80
  6. Step 6: Final answer
    x = 439,146.94

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Double scale
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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.