Home / 1,003,510.32-1,385,492.76-621,942

Finding the Fourth Proportional to 1,003,510.32, 1,385,492.76 and 621,942

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Solution

The fourth proportional to 1,003,510.32, 1,385,492.76 and 621,942 is: 858,681.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,510.32 : 1,385,492.76 = 621,942 : x
  2. Step 2: Convert to fraction form
    1,003,510.32/1,385,492.76 = 621,942/x
  3. Step 3: Cross multiply
    1,003,510.32x = 1,385,492.76 × 621,942
  4. Step 4: Simplify right side
    1,003,510.32x = 861,696,138,139.92
  5. Step 5: Solve for x
    x = 861,696,138,139.92/1,003,510.32
  6. Step 6: Final answer
    x = 858,681.89

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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.