Home / 767,686.60-1,152,912.30-742,803.40

Finding the Fourth Proportional to 767,686.60, 1,152,912.30 and 742,803.40

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Solution

The fourth proportional to 767,686.60, 1,152,912.30 and 742,803.40 is: 1,115,542.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,686.60 : 1,152,912.30 = 742,803.40 : x
  2. Step 2: Convert to fraction form
    767,686.60/1,152,912.30 = 742,803.40/x
  3. Step 3: Cross multiply
    767,686.60x = 1,152,912.30 × 742,803.40
  4. Step 4: Simplify right side
    767,686.60x = 856,387,176,341.82
  5. Step 5: Solve for x
    x = 856,387,176,341.82/767,686.60
  6. Step 6: Final answer
    x = 1,115,542.69

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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.