Home / 507,210.22-699,941.55-280,850.86

Finding the Fourth Proportional to 507,210.22, 699,941.55 and 280,850.86

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Solution

The fourth proportional to 507,210.22, 699,941.55 and 280,850.86 is: 387,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,210.22 : 699,941.55 = 280,850.86 : x
  2. Step 2: Convert to fraction form
    507,210.22/699,941.55 = 280,850.86/x
  3. Step 3: Cross multiply
    507,210.22x = 699,941.55 × 280,850.86
  4. Step 4: Simplify right side
    507,210.22x = 196,579,186,267.23
  5. Step 5: Solve for x
    x = 196,579,186,267.23/507,210.22
  6. Step 6: Final answer
    x = 387,569.45

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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.