Home / 918,219.70-1,377,329.55-666,277.30

Finding the Fourth Proportional to 918,219.70, 1,377,329.55 and 666,277.30

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Solution

The fourth proportional to 918,219.70, 1,377,329.55 and 666,277.30 is: 999,415.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,219.70 : 1,377,329.55 = 666,277.30 : x
  2. Step 2: Convert to fraction form
    918,219.70/1,377,329.55 = 666,277.30/x
  3. Step 3: Cross multiply
    918,219.70x = 1,377,329.55 × 666,277.30
  4. Step 4: Simplify right side
    918,219.70x = 917,683,413,784.22
  5. Step 5: Solve for x
    x = 917,683,413,784.22/918,219.70
  6. Step 6: Final answer
    x = 999,415.95

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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.