Home / 689,282.25-951,068.89-402,746.91

Finding the Fourth Proportional to 689,282.25, 951,068.89 and 402,746.91

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Solution

The fourth proportional to 689,282.25, 951,068.89 and 402,746.91 is: 555,708.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,282.25 : 951,068.89 = 402,746.91 : x
  2. Step 2: Convert to fraction form
    689,282.25/951,068.89 = 402,746.91/x
  3. Step 3: Cross multiply
    689,282.25x = 951,068.89 × 402,746.91
  4. Step 4: Simplify right side
    689,282.25x = 383,040,056,644.63
  5. Step 5: Solve for x
    x = 383,040,056,644.63/689,282.25
  6. Step 6: Final answer
    x = 555,708.57

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1.5x scale

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.