Home / 790,948.42-1,091,503.40-428,364

Finding the Fourth Proportional to 790,948.42, 1,091,503.40 and 428,364

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Solution

The fourth proportional to 790,948.42, 1,091,503.40 and 428,364 is: 591,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,948.42 : 1,091,503.40 = 428,364 : x
  2. Step 2: Convert to fraction form
    790,948.42/1,091,503.40 = 428,364/x
  3. Step 3: Cross multiply
    790,948.42x = 1,091,503.40 × 428,364
  4. Step 4: Simplify right side
    790,948.42x = 467,560,760,295.78
  5. Step 5: Solve for x
    x = 467,560,760,295.78/790,948.42
  6. Step 6: Final answer
    x = 591,139.38

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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.