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Finding the Fourth Proportional to 869,522.40, 1,303,846.20 and 514,645.20

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Solution

The fourth proportional to 869,522.40, 1,303,846.20 and 514,645.20 is: 771,708.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,522.40 : 1,303,846.20 = 514,645.20 : x
  2. Step 2: Convert to fraction form
    869,522.40/1,303,846.20 = 514,645.20/x
  3. Step 3: Cross multiply
    869,522.40x = 1,303,846.20 × 514,645.20
  4. Step 4: Simplify right side
    869,522.40x = 671,018,188,368.24
  5. Step 5: Solve for x
    x = 671,018,188,368.24/869,522.40
  6. Step 6: Final answer
    x = 771,708.92

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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.