Home / 516,272.04-712,430.40-286,843.80

Finding the Fourth Proportional to 516,272.04, 712,430.40 and 286,843.80

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Solution

The fourth proportional to 516,272.04, 712,430.40 and 286,843.80 is: 395,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,272.04 : 712,430.40 = 286,843.80 : x
  2. Step 2: Convert to fraction form
    516,272.04/712,430.40 = 286,843.80/x
  3. Step 3: Cross multiply
    516,272.04x = 712,430.40 × 286,843.80
  4. Step 4: Simplify right side
    516,272.04x = 204,356,243,171.52
  5. Step 5: Solve for x
    x = 204,356,243,171.52/516,272.04
  6. Step 6: Final answer
    x = 395,830.55

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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.