Home / 1,009,186.80-1,513,780.08-476,761.68

Finding the Fourth Proportional to 1,009,186.80, 1,513,780.08 and 476,761.68

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Solution

The fourth proportional to 1,009,186.80, 1,513,780.08 and 476,761.68 is: 715,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,186.80 : 1,513,780.08 = 476,761.68 : x
  2. Step 2: Convert to fraction form
    1,009,186.80/1,513,780.08 = 476,761.68/x
  3. Step 3: Cross multiply
    1,009,186.80x = 1,513,780.08 × 476,761.68
  4. Step 4: Simplify right side
    1,009,186.80x = 721,712,334,091.34
  5. Step 5: Solve for x
    x = 721,712,334,091.34/1,009,186.80
  6. Step 6: Final answer
    x = 715,142.46

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Double scale
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1.5x scale

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.