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Finding the Fourth Proportional to 522,078.60, 781,368.30 and 522,078.60

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Solution

The fourth proportional to 522,078.60, 781,368.30 and 522,078.60 is: 781,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,078.60 : 781,368.30 = 522,078.60 : x
  2. Step 2: Convert to fraction form
    522,078.60/781,368.30 = 522,078.60/x
  3. Step 3: Cross multiply
    522,078.60x = 781,368.30 × 522,078.60
  4. Step 4: Simplify right side
    522,078.60x = 407,935,668,148.38
  5. Step 5: Solve for x
    x = 407,935,668,148.38/522,078.60
  6. Step 6: Final answer
    x = 781,368.30

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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.