Home / 999,145.74-1,378,792.89-546,427.02

Finding the Fourth Proportional to 999,145.74, 1,378,792.89 and 546,427.02

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Solution

The fourth proportional to 999,145.74, 1,378,792.89 and 546,427.02 is: 754,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,145.74 : 1,378,792.89 = 546,427.02 : x
  2. Step 2: Convert to fraction form
    999,145.74/1,378,792.89 = 546,427.02/x
  3. Step 3: Cross multiply
    999,145.74x = 1,378,792.89 × 546,427.02
  4. Step 4: Simplify right side
    999,145.74x = 753,409,690,079.89
  5. Step 5: Solve for x
    x = 753,409,690,079.89/999,145.74
  6. Step 6: Final answer
    x = 754,053.85

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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.