Home / 760,816.08-1,049,913.36-421,277.04

Finding the Fourth Proportional to 760,816.08, 1,049,913.36 and 421,277.04

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Solution

The fourth proportional to 760,816.08, 1,049,913.36 and 421,277.04 is: 581,355.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,816.08 : 1,049,913.36 = 421,277.04 : x
  2. Step 2: Convert to fraction form
    760,816.08/1,049,913.36 = 421,277.04/x
  3. Step 3: Cross multiply
    760,816.08x = 1,049,913.36 × 421,277.04
  4. Step 4: Simplify right side
    760,816.08x = 442,304,392,557.25
  5. Step 5: Solve for x
    x = 442,304,392,557.25/760,816.08
  6. Step 6: Final answer
    x = 581,355.21

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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.