Home / 805,434.60-1,208,068.68-272,941.80

Finding the Fourth Proportional to 805,434.60, 1,208,068.68 and 272,941.80

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Solution

The fourth proportional to 805,434.60, 1,208,068.68 and 272,941.80 is: 409,384.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,434.60 : 1,208,068.68 = 272,941.80 : x
  2. Step 2: Convert to fraction form
    805,434.60/1,208,068.68 = 272,941.80/x
  3. Step 3: Cross multiply
    805,434.60x = 1,208,068.68 × 272,941.80
  4. Step 4: Simplify right side
    805,434.60x = 329,732,440,042.82
  5. Step 5: Solve for x
    x = 329,732,440,042.82/805,434.60
  6. Step 6: Final answer
    x = 409,384.50

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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.