Home / 1,280,044.21-1,766,881.98-1,018,878.58

Finding the Fourth Proportional to 1,280,044.21, 1,766,881.98 and 1,018,878.58

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Solution

The fourth proportional to 1,280,044.21, 1,766,881.98 and 1,018,878.58 is: 1,406,387.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,044.21 : 1,766,881.98 = 1,018,878.58 : x
  2. Step 2: Convert to fraction form
    1,280,044.21/1,766,881.98 = 1,018,878.58/x
  3. Step 3: Cross multiply
    1,280,044.21x = 1,766,881.98 × 1,018,878.58
  4. Step 4: Simplify right side
    1,280,044.21x = 1,800,238,197,715.60
  5. Step 5: Solve for x
    x = 1,800,238,197,715.60/1,280,044.21
  6. Step 6: Final answer
    x = 1,406,387.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.