Home / 875,253.90-1,310,256.45-520,085.10

Finding the Fourth Proportional to 875,253.90, 1,310,256.45 and 520,085.10

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Solution

The fourth proportional to 875,253.90, 1,310,256.45 and 520,085.10 is: 778,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,253.90 : 1,310,256.45 = 520,085.10 : x
  2. Step 2: Convert to fraction form
    875,253.90/1,310,256.45 = 520,085.10/x
  3. Step 3: Cross multiply
    875,253.90x = 1,310,256.45 × 520,085.10
  4. Step 4: Simplify right side
    875,253.90x = 681,444,856,823.90
  5. Step 5: Solve for x
    x = 681,444,856,823.90/875,253.90
  6. Step 6: Final answer
    x = 778,568.20

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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.