Home / 790,947.17-1,091,501.67-428,362.75

Finding the Fourth Proportional to 790,947.17, 1,091,501.67 and 428,362.75

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Solution

The fourth proportional to 790,947.17, 1,091,501.67 and 428,362.75 is: 591,137.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,947.17 : 1,091,501.67 = 428,362.75 : x
  2. Step 2: Convert to fraction form
    790,947.17/1,091,501.67 = 428,362.75/x
  3. Step 3: Cross multiply
    790,947.17x = 1,091,501.67 × 428,362.75
  4. Step 4: Simplify right side
    790,947.17x = 467,558,656,990.79
  5. Step 5: Solve for x
    x = 467,558,656,990.79/790,947.17
  6. Step 6: Final answer
    x = 591,137.66

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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.