Home / 760,828.59-1,049,975.10-421,296.84

Finding the Fourth Proportional to 760,828.59, 1,049,975.10 and 421,296.84

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Solution

The fourth proportional to 760,828.59, 1,049,975.10 and 421,296.84 is: 581,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,828.59 : 1,049,975.10 = 421,296.84 : x
  2. Step 2: Convert to fraction form
    760,828.59/1,049,975.10 = 421,296.84/x
  3. Step 3: Cross multiply
    760,828.59x = 1,049,975.10 × 421,296.84
  4. Step 4: Simplify right side
    760,828.59x = 442,351,191,708.68
  5. Step 5: Solve for x
    x = 442,351,191,708.68/760,828.59
  6. Step 6: Final answer
    x = 581,407.16

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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.