Home / 887,127.98-1,224,235.40-505,154.76

Finding the Fourth Proportional to 887,127.98, 1,224,235.40 and 505,154.76

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Solution

The fourth proportional to 887,127.98, 1,224,235.40 and 505,154.76 is: 697,112.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,127.98 : 1,224,235.40 = 505,154.76 : x
  2. Step 2: Convert to fraction form
    887,127.98/1,224,235.40 = 505,154.76/x
  3. Step 3: Cross multiply
    887,127.98x = 1,224,235.40 × 505,154.76
  4. Step 4: Simplify right side
    887,127.98x = 618,428,339,670.50
  5. Step 5: Solve for x
    x = 618,428,339,670.50/887,127.98
  6. Step 6: Final answer
    x = 697,112.88

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Double scale
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1.5x scale

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.