Home / 672,021.05-1,008,031.58-618,366.65

Finding the Fourth Proportional to 672,021.05, 1,008,031.58 and 618,366.65

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Solution

The fourth proportional to 672,021.05, 1,008,031.58 and 618,366.65 is: 927,549.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,021.05 : 1,008,031.58 = 618,366.65 : x
  2. Step 2: Convert to fraction form
    672,021.05/1,008,031.58 = 618,366.65/x
  3. Step 3: Cross multiply
    672,021.05x = 1,008,031.58 × 618,366.65
  4. Step 4: Simplify right side
    672,021.05x = 623,333,108,126.97
  5. Step 5: Solve for x
    x = 623,333,108,126.97/672,021.05
  6. Step 6: Final answer
    x = 927,549.98

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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.