Home / 778,740.40-1,166,267.40-528,065.20

Finding the Fourth Proportional to 778,740.40, 1,166,267.40 and 528,065.20

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Solution

The fourth proportional to 778,740.40, 1,166,267.40 and 528,065.20 is: 790,847.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,740.40 : 1,166,267.40 = 528,065.20 : x
  2. Step 2: Convert to fraction form
    778,740.40/1,166,267.40 = 528,065.20/x
  3. Step 3: Cross multiply
    778,740.40x = 1,166,267.40 × 528,065.20
  4. Step 4: Simplify right side
    778,740.40x = 615,865,227,834.48
  5. Step 5: Solve for x
    x = 615,865,227,834.48/778,740.40
  6. Step 6: Final answer
    x = 790,847.92

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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.