Home / 676,603.30-1,012,280.55-440,407.30

Finding the Fourth Proportional to 676,603.30, 1,012,280.55 and 440,407.30

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Solution

The fourth proportional to 676,603.30, 1,012,280.55 and 440,407.30 is: 658,902.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,603.30 : 1,012,280.55 = 440,407.30 : x
  2. Step 2: Convert to fraction form
    676,603.30/1,012,280.55 = 440,407.30/x
  3. Step 3: Cross multiply
    676,603.30x = 1,012,280.55 × 440,407.30
  4. Step 4: Simplify right side
    676,603.30x = 445,815,743,868.02
  5. Step 5: Solve for x
    x = 445,815,743,868.02/676,603.30
  6. Step 6: Final answer
    x = 658,902.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.