Home / 280,254.47-420,547.79-262,522.36

Finding the Fourth Proportional to 280,254.47, 420,547.79 and 262,522.36

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Solution

The fourth proportional to 280,254.47, 420,547.79 and 262,522.36 is: 393,939.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,254.47 : 420,547.79 = 262,522.36 : x
  2. Step 2: Convert to fraction form
    280,254.47/420,547.79 = 262,522.36/x
  3. Step 3: Cross multiply
    280,254.47x = 420,547.79 × 262,522.36
  4. Step 4: Simplify right side
    280,254.47x = 110,403,198,323.58
  5. Step 5: Solve for x
    x = 110,403,198,323.58/280,254.47
  6. Step 6: Final answer
    x = 393,939.12

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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.