Home / 1,042,056-1,438,037.28-589,337.28

Finding the Fourth Proportional to 1,042,056, 1,438,037.28 and 589,337.28

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Solution

The fourth proportional to 1,042,056, 1,438,037.28 and 589,337.28 is: 813,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,056 : 1,438,037.28 = 589,337.28 : x
  2. Step 2: Convert to fraction form
    1,042,056/1,438,037.28 = 589,337.28/x
  3. Step 3: Cross multiply
    1,042,056x = 1,438,037.28 × 589,337.28
  4. Step 4: Simplify right side
    1,042,056x = 847,488,979,133.80
  5. Step 5: Solve for x
    x = 847,488,979,133.80/1,042,056
  6. Step 6: Final answer
    x = 813,285.45

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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.