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Finding the Fourth Proportional to 665,000.70, 997,501.05 and 455,048.70

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Solution

The fourth proportional to 665,000.70, 997,501.05 and 455,048.70 is: 682,573.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,000.70 : 997,501.05 = 455,048.70 : x
  2. Step 2: Convert to fraction form
    665,000.70/997,501.05 = 455,048.70/x
  3. Step 3: Cross multiply
    665,000.70x = 997,501.05 × 455,048.70
  4. Step 4: Simplify right side
    665,000.70x = 453,911,556,051.14
  5. Step 5: Solve for x
    x = 453,911,556,051.14/665,000.70
  6. Step 6: Final answer
    x = 682,573.05

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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.