Home / 999,139.83-1,378,836.59-569,459.94

Finding the Fourth Proportional to 999,139.83, 1,378,836.59 and 569,459.94

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Solution

The fourth proportional to 999,139.83, 1,378,836.59 and 569,459.94 is: 785,868.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,139.83 : 1,378,836.59 = 569,459.94 : x
  2. Step 2: Convert to fraction form
    999,139.83/1,378,836.59 = 569,459.94/x
  3. Step 3: Cross multiply
    999,139.83x = 1,378,836.59 × 569,459.94
  4. Step 4: Simplify right side
    999,139.83x = 785,192,198,963.91
  5. Step 5: Solve for x
    x = 785,192,198,963.91/999,139.83
  6. Step 6: Final answer
    x = 785,868.18

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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.