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Finding the Fourth Proportional to 507,815.57, 700,775.46 and 278,373.35

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Solution

The fourth proportional to 507,815.57, 700,775.46 and 278,373.35 is: 384,149.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,815.57 : 700,775.46 = 278,373.35 : x
  2. Step 2: Convert to fraction form
    507,815.57/700,775.46 = 278,373.35/x
  3. Step 3: Cross multiply
    507,815.57x = 700,775.46 × 278,373.35
  4. Step 4: Simplify right side
    507,815.57x = 195,077,208,894.11
  5. Step 5: Solve for x
    x = 195,077,208,894.11/507,815.57
  6. Step 6: Final answer
    x = 384,149.72

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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.