Home / 280,254.15-420,547.38-262,522.04

Finding the Fourth Proportional to 280,254.15, 420,547.38 and 262,522.04

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Solution

The fourth proportional to 280,254.15, 420,547.38 and 262,522.04 is: 393,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,254.15 : 420,547.38 = 262,522.04 : x
  2. Step 2: Convert to fraction form
    280,254.15/420,547.38 = 262,522.04/x
  3. Step 3: Cross multiply
    280,254.15x = 420,547.38 × 262,522.04
  4. Step 4: Simplify right side
    280,254.15x = 110,402,954,011.52
  5. Step 5: Solve for x
    x = 110,402,954,011.52/280,254.15
  6. Step 6: Final answer
    x = 393,938.69

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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.