Home / 766,205.62-1,057,271.16-439,501.70

Finding the Fourth Proportional to 766,205.62, 1,057,271.16 and 439,501.70

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Solution

The fourth proportional to 766,205.62, 1,057,271.16 and 439,501.70 is: 606,459.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,205.62 : 1,057,271.16 = 439,501.70 : x
  2. Step 2: Convert to fraction form
    766,205.62/1,057,271.16 = 439,501.70/x
  3. Step 3: Cross multiply
    766,205.62x = 1,057,271.16 × 439,501.70
  4. Step 4: Simplify right side
    766,205.62x = 464,672,476,472.28
  5. Step 5: Solve for x
    x = 464,672,476,472.28/766,205.62
  6. Step 6: Final answer
    x = 606,459.24

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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.