Home / 854,710.65-1,179,421.38-472,729.23

Finding the Fourth Proportional to 854,710.65, 1,179,421.38 and 472,729.23

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Solution

The fourth proportional to 854,710.65, 1,179,421.38 and 472,729.23 is: 652,322.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,710.65 : 1,179,421.38 = 472,729.23 : x
  2. Step 2: Convert to fraction form
    854,710.65/1,179,421.38 = 472,729.23/x
  3. Step 3: Cross multiply
    854,710.65x = 1,179,421.38 × 472,729.23
  4. Step 4: Simplify right side
    854,710.65x = 557,546,960,812.94
  5. Step 5: Solve for x
    x = 557,546,960,812.94/854,710.65
  6. Step 6: Final answer
    x = 652,322.47

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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.