Home / 760,837.92-1,049,943.42-421,298.88

Finding the Fourth Proportional to 760,837.92, 1,049,943.42 and 421,298.88

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Solution

The fourth proportional to 760,837.92, 1,049,943.42 and 421,298.88 is: 581,385.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,837.92 : 1,049,943.42 = 421,298.88 : x
  2. Step 2: Convert to fraction form
    760,837.92/1,049,943.42 = 421,298.88/x
  3. Step 3: Cross multiply
    760,837.92x = 1,049,943.42 × 421,298.88
  4. Step 4: Simplify right side
    760,837.92x = 442,339,986,909.37
  5. Step 5: Solve for x
    x = 442,339,986,909.37/760,837.92
  6. Step 6: Final answer
    x = 581,385.31

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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.