Home / 1,187,004.30-1,780,506.45-557,148.30

Finding the Fourth Proportional to 1,187,004.30, 1,780,506.45 and 557,148.30

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Solution

The fourth proportional to 1,187,004.30, 1,780,506.45 and 557,148.30 is: 835,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,004.30 : 1,780,506.45 = 557,148.30 : x
  2. Step 2: Convert to fraction form
    1,187,004.30/1,780,506.45 = 557,148.30/x
  3. Step 3: Cross multiply
    1,187,004.30x = 1,780,506.45 × 557,148.30
  4. Step 4: Simplify right side
    1,187,004.30x = 992,006,141,756.54
  5. Step 5: Solve for x
    x = 992,006,141,756.54/1,187,004.30
  6. Step 6: Final answer
    x = 835,722.45

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Double scale
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Similar ratio
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1.5x scale

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.