Home / 786,006.10-1,178,231.55-386,319.70

Finding the Fourth Proportional to 786,006.10, 1,178,231.55 and 386,319.70

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Solution

The fourth proportional to 786,006.10, 1,178,231.55 and 386,319.70 is: 579,097.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,006.10 : 1,178,231.55 = 386,319.70 : x
  2. Step 2: Convert to fraction form
    786,006.10/1,178,231.55 = 386,319.70/x
  3. Step 3: Cross multiply
    786,006.10x = 1,178,231.55 × 386,319.70
  4. Step 4: Simplify right side
    786,006.10x = 455,174,058,926.54
  5. Step 5: Solve for x
    x = 455,174,058,926.54/786,006.10
  6. Step 6: Final answer
    x = 579,097.36

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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.