Home / 875,246.90-1,310,245.95-520,078.10

Finding the Fourth Proportional to 875,246.90, 1,310,245.95 and 520,078.10

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Solution

The fourth proportional to 875,246.90, 1,310,245.95 and 520,078.10 is: 778,557.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,246.90 : 1,310,245.95 = 520,078.10 : x
  2. Step 2: Convert to fraction form
    875,246.90/1,310,245.95 = 520,078.10/x
  3. Step 3: Cross multiply
    875,246.90x = 1,310,245.95 × 520,078.10
  4. Step 4: Simplify right side
    875,246.90x = 681,430,224,208.70
  5. Step 5: Solve for x
    x = 681,430,224,208.70/875,246.90
  6. Step 6: Final answer
    x = 778,557.71

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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.