Home / 1,280,018.98-1,920,102.28-481,307.44

Finding the Fourth Proportional to 1,280,018.98, 1,920,102.28 and 481,307.44

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Solution

The fourth proportional to 1,280,018.98, 1,920,102.28 and 481,307.44 is: 721,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,018.98 : 1,920,102.28 = 481,307.44 : x
  2. Step 2: Convert to fraction form
    1,280,018.98/1,920,102.28 = 481,307.44/x
  3. Step 3: Cross multiply
    1,280,018.98x = 1,920,102.28 × 481,307.44
  4. Step 4: Simplify right side
    1,280,018.98x = 924,159,516,598.73
  5. Step 5: Solve for x
    x = 924,159,516,598.73/1,280,018.98
  6. Step 6: Final answer
    x = 721,988.92

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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.