Home / 790,159.32-1,090,591.02-499,586.40

Finding the Fourth Proportional to 790,159.32, 1,090,591.02 and 499,586.40

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Solution

The fourth proportional to 790,159.32, 1,090,591.02 and 499,586.40 is: 689,537.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,159.32 : 1,090,591.02 = 499,586.40 : x
  2. Step 2: Convert to fraction form
    790,159.32/1,090,591.02 = 499,586.40/x
  3. Step 3: Cross multiply
    790,159.32x = 1,090,591.02 × 499,586.40
  4. Step 4: Simplify right side
    790,159.32x = 544,844,441,554.13
  5. Step 5: Solve for x
    x = 544,844,441,554.13/790,159.32
  6. Step 6: Final answer
    x = 689,537.45

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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.