Home / 778,207.40-1,073,743.50-472,276.64

Finding the Fourth Proportional to 778,207.40, 1,073,743.50 and 472,276.64

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Solution

The fourth proportional to 778,207.40, 1,073,743.50 and 472,276.64 is: 651,630.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,207.40 : 1,073,743.50 = 472,276.64 : x
  2. Step 2: Convert to fraction form
    778,207.40/1,073,743.50 = 472,276.64/x
  3. Step 3: Cross multiply
    778,207.40x = 1,073,743.50 × 472,276.64
  4. Step 4: Simplify right side
    778,207.40x = 507,103,972,401.84
  5. Step 5: Solve for x
    x = 507,103,972,401.84/778,207.40
  6. Step 6: Final answer
    x = 651,630.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.