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Finding the Fourth Proportional to 702,841.72, 969,917.46 and 380,545.15

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Solution

The fourth proportional to 702,841.72, 969,917.46 and 380,545.15 is: 525,150.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,841.72 : 969,917.46 = 380,545.15 : x
  2. Step 2: Convert to fraction form
    702,841.72/969,917.46 = 380,545.15/x
  3. Step 3: Cross multiply
    702,841.72x = 969,917.46 × 380,545.15
  4. Step 4: Simplify right side
    702,841.72x = 369,097,385,303.32
  5. Step 5: Solve for x
    x = 369,097,385,303.32/702,841.72
  6. Step 6: Final answer
    x = 525,150.08

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1.5x scale

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.