Home / 686,022.60-1,029,034.38-286,445.64

Finding the Fourth Proportional to 686,022.60, 1,029,034.38 and 286,445.64

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Solution

The fourth proportional to 686,022.60, 1,029,034.38 and 286,445.64 is: 429,668.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,022.60 : 1,029,034.38 = 286,445.64 : x
  2. Step 2: Convert to fraction form
    686,022.60/1,029,034.38 = 286,445.64/x
  3. Step 3: Cross multiply
    686,022.60x = 1,029,034.38 × 286,445.64
  4. Step 4: Simplify right side
    686,022.60x = 294,762,411,561.10
  5. Step 5: Solve for x
    x = 294,762,411,561.10/686,022.60
  6. Step 6: Final answer
    x = 429,668.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.