Home / 688,312.80-1,032,469.20-449,164.35

Finding the Fourth Proportional to 688,312.80, 1,032,469.20 and 449,164.35

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Solution

The fourth proportional to 688,312.80, 1,032,469.20 and 449,164.35 is: 673,746.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,312.80 : 1,032,469.20 = 449,164.35 : x
  2. Step 2: Convert to fraction form
    688,312.80/1,032,469.20 = 449,164.35/x
  3. Step 3: Cross multiply
    688,312.80x = 1,032,469.20 × 449,164.35
  4. Step 4: Simplify right side
    688,312.80x = 463,748,357,113.02
  5. Step 5: Solve for x
    x = 463,748,357,113.02/688,312.80
  6. Step 6: Final answer
    x = 673,746.53

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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.