Home / 760,711.79-1,049,815.08-421,180.04

Finding the Fourth Proportional to 760,711.79, 1,049,815.08 and 421,180.04

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Solution

The fourth proportional to 760,711.79, 1,049,815.08 and 421,180.04 is: 581,246.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,711.79 : 1,049,815.08 = 421,180.04 : x
  2. Step 2: Convert to fraction form
    760,711.79/1,049,815.08 = 421,180.04/x
  3. Step 3: Cross multiply
    760,711.79x = 1,049,815.08 × 421,180.04
  4. Step 4: Simplify right side
    760,711.79x = 442,161,160,011.54
  5. Step 5: Solve for x
    x = 442,161,160,011.54/760,711.79
  6. Step 6: Final answer
    x = 581,246.62

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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.