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Finding the Fourth Proportional to 520,064.70, 730,190.10 and 520,064.70

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Solution

The fourth proportional to 520,064.70, 730,190.10 and 520,064.70 is: 730,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,064.70 : 730,190.10 = 520,064.70 : x
  2. Step 2: Convert to fraction form
    520,064.70/730,190.10 = 520,064.70/x
  3. Step 3: Cross multiply
    520,064.70x = 730,190.10 × 520,064.70
  4. Step 4: Simplify right side
    520,064.70x = 379,746,095,299.47
  5. Step 5: Solve for x
    x = 379,746,095,299.47/520,064.70
  6. Step 6: Final answer
    x = 730,190.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.