Home / 760,857.33-1,049,970.15-421,318.29

Finding the Fourth Proportional to 760,857.33, 1,049,970.15 and 421,318.29

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Solution

The fourth proportional to 760,857.33, 1,049,970.15 and 421,318.29 is: 581,412.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,857.33 : 1,049,970.15 = 421,318.29 : x
  2. Step 2: Convert to fraction form
    760,857.33/1,049,970.15 = 421,318.29/x
  3. Step 3: Cross multiply
    760,857.33x = 1,049,970.15 × 421,318.29
  4. Step 4: Simplify right side
    760,857.33x = 442,371,628,149.04
  5. Step 5: Solve for x
    x = 442,371,628,149.04/760,857.33
  6. Step 6: Final answer
    x = 581,412.06

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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.