Home / 786,424.40-1,178,081.40-730,437.20

Finding the Fourth Proportional to 786,424.40, 1,178,081.40 and 730,437.20

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Solution

The fourth proportional to 786,424.40, 1,178,081.40 and 730,437.20 is: 1,094,211.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,424.40 : 1,178,081.40 = 730,437.20 : x
  2. Step 2: Convert to fraction form
    786,424.40/1,178,081.40 = 730,437.20/x
  3. Step 3: Cross multiply
    786,424.40x = 1,178,081.40 × 730,437.20
  4. Step 4: Simplify right side
    786,424.40x = 860,514,479,188.08
  5. Step 5: Solve for x
    x = 860,514,479,188.08/786,424.40
  6. Step 6: Final answer
    x = 1,094,211.32

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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.