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Finding the Fourth Proportional to 885,998.90, 1,328,998.35 and 506,530.10

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Solution

The fourth proportional to 885,998.90, 1,328,998.35 and 506,530.10 is: 759,795.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,998.90 : 1,328,998.35 = 506,530.10 : x
  2. Step 2: Convert to fraction form
    885,998.90/1,328,998.35 = 506,530.10/x
  3. Step 3: Cross multiply
    885,998.90x = 1,328,998.35 × 506,530.10
  4. Step 4: Simplify right side
    885,998.90x = 673,177,667,125.34
  5. Step 5: Solve for x
    x = 673,177,667,125.34/885,998.90
  6. Step 6: Final answer
    x = 759,795.15

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Double scale
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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.