Home / 788,288.43-1,087,837.80-425,712.18

Finding the Fourth Proportional to 788,288.43, 1,087,837.80 and 425,712.18

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Solution

The fourth proportional to 788,288.43, 1,087,837.80 and 425,712.18 is: 587,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,288.43 : 1,087,837.80 = 425,712.18 : x
  2. Step 2: Convert to fraction form
    788,288.43/1,087,837.80 = 425,712.18/x
  3. Step 3: Cross multiply
    788,288.43x = 1,087,837.80 × 425,712.18
  4. Step 4: Simplify right side
    788,288.43x = 463,105,801,324.40
  5. Step 5: Solve for x
    x = 463,105,801,324.40/788,288.43
  6. Step 6: Final answer
    x = 587,482.68

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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.