Home / 744,897.40-1,117,259.70-212,500.60

Finding the Fourth Proportional to 744,897.40, 1,117,259.70 and 212,500.60

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Solution

The fourth proportional to 744,897.40, 1,117,259.70 and 212,500.60 is: 318,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,897.40 : 1,117,259.70 = 212,500.60 : x
  2. Step 2: Convert to fraction form
    744,897.40/1,117,259.70 = 212,500.60/x
  3. Step 3: Cross multiply
    744,897.40x = 1,117,259.70 × 212,500.60
  4. Step 4: Simplify right side
    744,897.40x = 237,418,356,605.82
  5. Step 5: Solve for x
    x = 237,418,356,605.82/744,897.40
  6. Step 6: Final answer
    x = 318,726.25

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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.