Home / 875,255.90-1,310,259.45-520,087.10

Finding the Fourth Proportional to 875,255.90, 1,310,259.45 and 520,087.10

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Solution

The fourth proportional to 875,255.90, 1,310,259.45 and 520,087.10 is: 778,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,255.90 : 1,310,259.45 = 520,087.10 : x
  2. Step 2: Convert to fraction form
    875,255.90/1,310,259.45 = 520,087.10/x
  3. Step 3: Cross multiply
    875,255.90x = 1,310,259.45 × 520,087.10
  4. Step 4: Simplify right side
    875,255.90x = 681,449,037,598.10
  5. Step 5: Solve for x
    x = 681,449,037,598.10/875,255.90
  6. Step 6: Final answer
    x = 778,571.20

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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.