Home / 1,287,738.10-1,931,607.15-657,882.10

Finding the Fourth Proportional to 1,287,738.10, 1,931,607.15 and 657,882.10

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Solution

The fourth proportional to 1,287,738.10, 1,931,607.15 and 657,882.10 is: 986,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,738.10 : 1,931,607.15 = 657,882.10 : x
  2. Step 2: Convert to fraction form
    1,287,738.10/1,931,607.15 = 657,882.10/x
  3. Step 3: Cross multiply
    1,287,738.10x = 1,931,607.15 × 657,882.10
  4. Step 4: Simplify right side
    1,287,738.10x = 1,270,769,768,217.01
  5. Step 5: Solve for x
    x = 1,270,769,768,217.01/1,287,738.10
  6. Step 6: Final answer
    x = 986,823.15

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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.