Home / 803,687.15-1,109,014.80-476,943.68

Finding the Fourth Proportional to 803,687.15, 1,109,014.80 and 476,943.68

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Solution

The fourth proportional to 803,687.15, 1,109,014.80 and 476,943.68 is: 658,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,687.15 : 1,109,014.80 = 476,943.68 : x
  2. Step 2: Convert to fraction form
    803,687.15/1,109,014.80 = 476,943.68/x
  3. Step 3: Cross multiply
    803,687.15x = 1,109,014.80 × 476,943.68
  4. Step 4: Simplify right side
    803,687.15x = 528,937,599,886.46
  5. Step 5: Solve for x
    x = 528,937,599,886.46/803,687.15
  6. Step 6: Final answer
    x = 658,138.68

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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.