Home / 1,326,172.77-1,990,031.02-557,614.82

Finding the Fourth Proportional to 1,326,172.77, 1,990,031.02 and 557,614.82

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Solution

The fourth proportional to 1,326,172.77, 1,990,031.02 and 557,614.82 is: 836,746.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,172.77 : 1,990,031.02 = 557,614.82 : x
  2. Step 2: Convert to fraction form
    1,326,172.77/1,990,031.02 = 557,614.82/x
  3. Step 3: Cross multiply
    1,326,172.77x = 1,990,031.02 × 557,614.82
  4. Step 4: Simplify right side
    1,326,172.77x = 1,109,670,781,398.83
  5. Step 5: Solve for x
    x = 1,109,670,781,398.83/1,326,172.77
  6. Step 6: Final answer
    x = 836,746.77

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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.