Home / 778,747.90-1,166,278.65-528,072.70

Finding the Fourth Proportional to 778,747.90, 1,166,278.65 and 528,072.70

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Solution

The fourth proportional to 778,747.90, 1,166,278.65 and 528,072.70 is: 790,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,747.90 : 1,166,278.65 = 528,072.70 : x
  2. Step 2: Convert to fraction form
    778,747.90/1,166,278.65 = 528,072.70/x
  3. Step 3: Cross multiply
    778,747.90x = 1,166,278.65 × 528,072.70
  4. Step 4: Simplify right side
    778,747.90x = 615,879,915,657.86
  5. Step 5: Solve for x
    x = 615,879,915,657.86/778,747.90
  6. Step 6: Final answer
    x = 790,859.17

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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.