Home / 690,886.60-1,036,640.93-374,869.96

Finding the Fourth Proportional to 690,886.60, 1,036,640.93 and 374,869.96

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Solution

The fourth proportional to 690,886.60, 1,036,640.93 and 374,869.96 is: 562,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,886.60 : 1,036,640.93 = 374,869.96 : x
  2. Step 2: Convert to fraction form
    690,886.60/1,036,640.93 = 374,869.96/x
  3. Step 3: Cross multiply
    690,886.60x = 1,036,640.93 × 374,869.96
  4. Step 4: Simplify right side
    690,886.60x = 388,605,543,963.46
  5. Step 5: Solve for x
    x = 388,605,543,963.46/690,886.60
  6. Step 6: Final answer
    x = 562,473.70

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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.