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Finding the Fourth Proportional to 526,007.60, 789,529.80 and 260,068.40

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Solution

The fourth proportional to 526,007.60, 789,529.80 and 260,068.40 is: 390,358.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,007.60 : 789,529.80 = 260,068.40 : x
  2. Step 2: Convert to fraction form
    526,007.60/789,529.80 = 260,068.40/x
  3. Step 3: Cross multiply
    526,007.60x = 789,529.80 × 260,068.40
  4. Step 4: Simplify right side
    526,007.60x = 205,331,751,838.32
  5. Step 5: Solve for x
    x = 205,331,751,838.32/526,007.60
  6. Step 6: Final answer
    x = 390,358.91

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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.