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Finding the Fourth Proportional to 607,890.70, 910,523.85 and 395,314.30

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Solution

The fourth proportional to 607,890.70, 910,523.85 and 395,314.30 is: 592,118.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,890.70 : 910,523.85 = 395,314.30 : x
  2. Step 2: Convert to fraction form
    607,890.70/910,523.85 = 395,314.30/x
  3. Step 3: Cross multiply
    607,890.70x = 910,523.85 × 395,314.30
  4. Step 4: Simplify right side
    607,890.70x = 359,943,098,396.06
  5. Step 5: Solve for x
    x = 359,943,098,396.06/607,890.70
  6. Step 6: Final answer
    x = 592,118.12

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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.