Home / 803,146.88-1,108,156.64-480,734.40

Finding the Fourth Proportional to 803,146.88, 1,108,156.64 and 480,734.40

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Solution

The fourth proportional to 803,146.88, 1,108,156.64 and 480,734.40 is: 663,302.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,146.88 : 1,108,156.64 = 480,734.40 : x
  2. Step 2: Convert to fraction form
    803,146.88/1,108,156.64 = 480,734.40/x
  3. Step 3: Cross multiply
    803,146.88x = 1,108,156.64 × 480,734.40
  4. Step 4: Simplify right side
    803,146.88x = 532,729,017,436.42
  5. Step 5: Solve for x
    x = 532,729,017,436.42/803,146.88
  6. Step 6: Final answer
    x = 663,302.11

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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.