Home / 876,887.80-1,315,331.70-666,935.80

Finding the Fourth Proportional to 876,887.80, 1,315,331.70 and 666,935.80

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Solution

The fourth proportional to 876,887.80, 1,315,331.70 and 666,935.80 is: 1,000,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,887.80 : 1,315,331.70 = 666,935.80 : x
  2. Step 2: Convert to fraction form
    876,887.80/1,315,331.70 = 666,935.80/x
  3. Step 3: Cross multiply
    876,887.80x = 1,315,331.70 × 666,935.80
  4. Step 4: Simplify right side
    876,887.80x = 877,241,799,604.86
  5. Step 5: Solve for x
    x = 877,241,799,604.86/876,887.80
  6. Step 6: Final answer
    x = 1,000,403.70

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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.