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Finding the Fourth Proportional to 543,530.10, 815,295.15 and 497,029.01

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Solution

The fourth proportional to 543,530.10, 815,295.15 and 497,029.01 is: 745,543.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,530.10 : 815,295.15 = 497,029.01 : x
  2. Step 2: Convert to fraction form
    543,530.10/815,295.15 = 497,029.01/x
  3. Step 3: Cross multiply
    543,530.10x = 815,295.15 × 497,029.01
  4. Step 4: Simplify right side
    543,530.10x = 405,225,343,300.54
  5. Step 5: Solve for x
    x = 405,225,343,300.54/543,530.10
  6. Step 6: Final answer
    x = 745,543.52

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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.