Home / 803,686.15-1,109,013.42-476,942.68

Finding the Fourth Proportional to 803,686.15, 1,109,013.42 and 476,942.68

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Solution

The fourth proportional to 803,686.15, 1,109,013.42 and 476,942.68 is: 658,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,686.15 : 1,109,013.42 = 476,942.68 : x
  2. Step 2: Convert to fraction form
    803,686.15/1,109,013.42 = 476,942.68/x
  3. Step 3: Cross multiply
    803,686.15x = 1,109,013.42 × 476,942.68
  4. Step 4: Simplify right side
    803,686.15x = 528,935,832,690.77
  5. Step 5: Solve for x
    x = 528,935,832,690.77/803,686.15
  6. Step 6: Final answer
    x = 658,137.30

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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.