Home / 791,017.67-1,091,603.90-428,441.42

Finding the Fourth Proportional to 791,017.67, 1,091,603.90 and 428,441.42

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Solution

The fourth proportional to 791,017.67, 1,091,603.90 and 428,441.42 is: 591,248.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,017.67 : 1,091,603.90 = 428,441.42 : x
  2. Step 2: Convert to fraction form
    791,017.67/1,091,603.90 = 428,441.42/x
  3. Step 3: Cross multiply
    791,017.67x = 1,091,603.90 × 428,441.42
  4. Step 4: Simplify right side
    791,017.67x = 467,688,317,393.31
  5. Step 5: Solve for x
    x = 467,688,317,393.31/791,017.67
  6. Step 6: Final answer
    x = 591,248.89

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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.