Home / 877,621.70-1,316,432.55-728,030.90

Finding the Fourth Proportional to 877,621.70, 1,316,432.55 and 728,030.90

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Solution

The fourth proportional to 877,621.70, 1,316,432.55 and 728,030.90 is: 1,092,046.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,621.70 : 1,316,432.55 = 728,030.90 : x
  2. Step 2: Convert to fraction form
    877,621.70/1,316,432.55 = 728,030.90/x
  3. Step 3: Cross multiply
    877,621.70x = 1,316,432.55 × 728,030.90
  4. Step 4: Simplify right side
    877,621.70x = 958,403,574,165.80
  5. Step 5: Solve for x
    x = 958,403,574,165.80/877,621.70
  6. Step 6: Final answer
    x = 1,092,046.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.