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Finding the Fourth Proportional to 606,985.70, 910,478.55 and 555,809.90

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Solution

The fourth proportional to 606,985.70, 910,478.55 and 555,809.90 is: 833,714.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,985.70 : 910,478.55 = 555,809.90 : x
  2. Step 2: Convert to fraction form
    606,985.70/910,478.55 = 555,809.90/x
  3. Step 3: Cross multiply
    606,985.70x = 910,478.55 × 555,809.90
  4. Step 4: Simplify right side
    606,985.70x = 506,052,991,827.65
  5. Step 5: Solve for x
    x = 506,052,991,827.65/606,985.70
  6. Step 6: Final answer
    x = 833,714.85

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Similar ratio
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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.