Home / 760,951.53-1,047,723.05-645,991.88

Finding the Fourth Proportional to 760,951.53, 1,047,723.05 and 645,991.88

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Solution

The fourth proportional to 760,951.53, 1,047,723.05 and 645,991.88 is: 889,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,951.53 : 1,047,723.05 = 645,991.88 : x
  2. Step 2: Convert to fraction form
    760,951.53/1,047,723.05 = 645,991.88/x
  3. Step 3: Cross multiply
    760,951.53x = 1,047,723.05 × 645,991.88
  4. Step 4: Simplify right side
    760,951.53x = 676,820,579,165.20
  5. Step 5: Solve for x
    x = 676,820,579,165.20/760,951.53
  6. Step 6: Final answer
    x = 889,439.80

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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.