Home / 788,302.80-1,087,857.64-425,726.55

Finding the Fourth Proportional to 788,302.80, 1,087,857.64 and 425,726.55

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Solution

The fourth proportional to 788,302.80, 1,087,857.64 and 425,726.55 is: 587,502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,302.80 : 1,087,857.64 = 425,726.55 : x
  2. Step 2: Convert to fraction form
    788,302.80/1,087,857.64 = 425,726.55/x
  3. Step 3: Cross multiply
    788,302.80x = 1,087,857.64 × 425,726.55
  4. Step 4: Simplify right side
    788,302.80x = 463,129,880,500.50
  5. Step 5: Solve for x
    x = 463,129,880,500.50/788,302.80
  6. Step 6: Final answer
    x = 587,502.52

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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.