Home / 1,200,712.54-1,657,073.28-684,478.76

Finding the Fourth Proportional to 1,200,712.54, 1,657,073.28 and 684,478.76

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Solution

The fourth proportional to 1,200,712.54, 1,657,073.28 and 684,478.76 is: 944,631.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,712.54 : 1,657,073.28 = 684,478.76 : x
  2. Step 2: Convert to fraction form
    1,200,712.54/1,657,073.28 = 684,478.76/x
  3. Step 3: Cross multiply
    1,200,712.54x = 1,657,073.28 × 684,478.76
  4. Step 4: Simplify right side
    1,200,712.54x = 1,134,231,463,923.53
  5. Step 5: Solve for x
    x = 1,134,231,463,923.53/1,200,712.54
  6. Step 6: Final answer
    x = 944,631.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.