Home / 718,629.80-991,707.54-432,316.04

Finding the Fourth Proportional to 718,629.80, 991,707.54 and 432,316.04

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Solution

The fourth proportional to 718,629.80, 991,707.54 and 432,316.04 is: 596,595.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,629.80 : 991,707.54 = 432,316.04 : x
  2. Step 2: Convert to fraction form
    718,629.80/991,707.54 = 432,316.04/x
  3. Step 3: Cross multiply
    718,629.80x = 991,707.54 × 432,316.04
  4. Step 4: Simplify right side
    718,629.80x = 428,731,076,530.94
  5. Step 5: Solve for x
    x = 428,731,076,530.94/718,629.80
  6. Step 6: Final answer
    x = 596,595.18

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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.