Home / 689,939.06-951,860.52-688,875.02

Finding the Fourth Proportional to 689,939.06, 951,860.52 and 688,875.02

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Solution

The fourth proportional to 689,939.06, 951,860.52 and 688,875.02 is: 950,392.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,939.06 : 951,860.52 = 688,875.02 : x
  2. Step 2: Convert to fraction form
    689,939.06/951,860.52 = 688,875.02/x
  3. Step 3: Cross multiply
    689,939.06x = 951,860.52 × 688,875.02
  4. Step 4: Simplify right side
    689,939.06x = 655,712,934,752.21
  5. Step 5: Solve for x
    x = 655,712,934,752.21/689,939.06
  6. Step 6: Final answer
    x = 950,392.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.