Home / 918,218.70-1,377,328.05-666,276.30

Finding the Fourth Proportional to 918,218.70, 1,377,328.05 and 666,276.30

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Solution

The fourth proportional to 918,218.70, 1,377,328.05 and 666,276.30 is: 999,414.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,218.70 : 1,377,328.05 = 666,276.30 : x
  2. Step 2: Convert to fraction form
    918,218.70/1,377,328.05 = 666,276.30/x
  3. Step 3: Cross multiply
    918,218.70x = 1,377,328.05 × 666,276.30
  4. Step 4: Simplify right side
    918,218.70x = 917,681,037,040.22
  5. Step 5: Solve for x
    x = 917,681,037,040.22/918,218.70
  6. Step 6: Final answer
    x = 999,414.45

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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.