Home / 748,904.65-1,123,356.98-216,443.05

Finding the Fourth Proportional to 748,904.65, 1,123,356.98 and 216,443.05

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Solution

The fourth proportional to 748,904.65, 1,123,356.98 and 216,443.05 is: 324,664.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,904.65 : 1,123,356.98 = 216,443.05 : x
  2. Step 2: Convert to fraction form
    748,904.65/1,123,356.98 = 216,443.05/x
  3. Step 3: Cross multiply
    748,904.65x = 1,123,356.98 × 216,443.05
  4. Step 4: Simplify right side
    748,904.65x = 243,142,809,907.77
  5. Step 5: Solve for x
    x = 243,142,809,907.77/748,904.65
  6. Step 6: Final answer
    x = 324,664.58

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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.