Home / 749,111.60-1,123,700.20-216,686.45

Finding the Fourth Proportional to 749,111.60, 1,123,700.20 and 216,686.45

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Solution

The fourth proportional to 749,111.60, 1,123,700.20 and 216,686.45 is: 325,039.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,111.60 : 1,123,700.20 = 216,686.45 : x
  2. Step 2: Convert to fraction form
    749,111.60/1,123,700.20 = 216,686.45/x
  3. Step 3: Cross multiply
    749,111.60x = 1,123,700.20 × 216,686.45
  4. Step 4: Simplify right side
    749,111.60x = 243,490,607,202.29
  5. Step 5: Solve for x
    x = 243,490,607,202.29/749,111.60
  6. Step 6: Final answer
    x = 325,039.16

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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.