Home / 1,259,298.48-1,737,868.32-686,375.76

Finding the Fourth Proportional to 1,259,298.48, 1,737,868.32 and 686,375.76

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Solution

The fourth proportional to 1,259,298.48, 1,737,868.32 and 686,375.76 is: 947,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,298.48 : 1,737,868.32 = 686,375.76 : x
  2. Step 2: Convert to fraction form
    1,259,298.48/1,737,868.32 = 686,375.76/x
  3. Step 3: Cross multiply
    1,259,298.48x = 1,737,868.32 × 686,375.76
  4. Step 4: Simplify right side
    1,259,298.48x = 1,192,830,688,919.92
  5. Step 5: Solve for x
    x = 1,192,830,688,919.92/1,259,298.48
  6. Step 6: Final answer
    x = 947,218.40

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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.