Home / 777,603.12-1,073,087.52-438,180.72

Finding the Fourth Proportional to 777,603.12, 1,073,087.52 and 438,180.72

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Solution

The fourth proportional to 777,603.12, 1,073,087.52 and 438,180.72 is: 604,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,603.12 : 1,073,087.52 = 438,180.72 : x
  2. Step 2: Convert to fraction form
    777,603.12/1,073,087.52 = 438,180.72/x
  3. Step 3: Cross multiply
    777,603.12x = 1,073,087.52 × 438,180.72
  4. Step 4: Simplify right side
    777,603.12x = 470,206,262,136.61
  5. Step 5: Solve for x
    x = 470,206,262,136.61/777,603.12
  6. Step 6: Final answer
    x = 604,686.70

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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.