Home / 516,007.02-712,065.62-286,579.18

Finding the Fourth Proportional to 516,007.02, 712,065.62 and 286,579.18

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Solution

The fourth proportional to 516,007.02, 712,065.62 and 286,579.18 is: 395,465.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,007.02 : 712,065.62 = 286,579.18 : x
  2. Step 2: Convert to fraction form
    516,007.02/712,065.62 = 286,579.18/x
  3. Step 3: Cross multiply
    516,007.02x = 712,065.62 × 286,579.18
  4. Step 4: Simplify right side
    516,007.02x = 204,063,176,492.57
  5. Step 5: Solve for x
    x = 204,063,176,492.57/516,007.02
  6. Step 6: Final answer
    x = 395,465.89

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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.