Home / 688,021.70-1,032,032.55-520,060.10

Finding the Fourth Proportional to 688,021.70, 1,032,032.55 and 520,060.10

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Solution

The fourth proportional to 688,021.70, 1,032,032.55 and 520,060.10 is: 780,090.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,021.70 : 1,032,032.55 = 520,060.10 : x
  2. Step 2: Convert to fraction form
    688,021.70/1,032,032.55 = 520,060.10/x
  3. Step 3: Cross multiply
    688,021.70x = 1,032,032.55 × 520,060.10
  4. Step 4: Simplify right side
    688,021.70x = 536,718,951,156.26
  5. Step 5: Solve for x
    x = 536,718,951,156.26/688,021.70
  6. Step 6: Final answer
    x = 780,090.15

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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.