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Finding the Fourth Proportional to 623,812.80, 934,944 and 286,495.59

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Solution

The fourth proportional to 623,812.80, 934,944 and 286,495.59 is: 429,387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,812.80 : 934,944 = 286,495.59 : x
  2. Step 2: Convert to fraction form
    623,812.80/934,944 = 286,495.59/x
  3. Step 3: Cross multiply
    623,812.80x = 934,944 × 286,495.59
  4. Step 4: Simplify right side
    623,812.80x = 267,857,332,896.96
  5. Step 5: Solve for x
    x = 267,857,332,896.96/623,812.80
  6. Step 6: Final answer
    x = 429,387.36

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1.5x scale

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.