Home / 767,954.40-1,059,777.52-428,422.65

Finding the Fourth Proportional to 767,954.40, 1,059,777.52 and 428,422.65

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Solution

The fourth proportional to 767,954.40, 1,059,777.52 and 428,422.65 is: 591,223.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,954.40 : 1,059,777.52 = 428,422.65 : x
  2. Step 2: Convert to fraction form
    767,954.40/1,059,777.52 = 428,422.65/x
  3. Step 3: Cross multiply
    767,954.40x = 1,059,777.52 × 428,422.65
  4. Step 4: Simplify right side
    767,954.40x = 454,032,688,483.61
  5. Step 5: Solve for x
    x = 454,032,688,483.61/767,954.40
  6. Step 6: Final answer
    x = 591,223.50

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1.5x scale

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.