Home / 1,207,870.89-1,666,893.72-656,623.68

Finding the Fourth Proportional to 1,207,870.89, 1,666,893.72 and 656,623.68

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Solution

The fourth proportional to 1,207,870.89, 1,666,893.72 and 656,623.68 is: 906,158.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,870.89 : 1,666,893.72 = 656,623.68 : x
  2. Step 2: Convert to fraction form
    1,207,870.89/1,666,893.72 = 656,623.68/x
  3. Step 3: Cross multiply
    1,207,870.89x = 1,666,893.72 × 656,623.68
  4. Step 4: Simplify right side
    1,207,870.89x = 1,094,521,888,595.29
  5. Step 5: Solve for x
    x = 1,094,521,888,595.29/1,207,870.89
  6. Step 6: Final answer
    x = 906,158.02

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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.