Home / 818,864.21-1,228,411.13-286,264.10

Finding the Fourth Proportional to 818,864.21, 1,228,411.13 and 286,264.10

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Solution

The fourth proportional to 818,864.21, 1,228,411.13 and 286,264.10 is: 429,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,864.21 : 1,228,411.13 = 286,264.10 : x
  2. Step 2: Convert to fraction form
    818,864.21/1,228,411.13 = 286,264.10/x
  3. Step 3: Cross multiply
    818,864.21x = 1,228,411.13 × 286,264.10
  4. Step 4: Simplify right side
    818,864.21x = 351,650,006,559.43
  5. Step 5: Solve for x
    x = 351,650,006,559.43/818,864.21
  6. Step 6: Final answer
    x = 429,436.29

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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.