Home / 945,878.60-1,418,271.78-646,721.48

Finding the Fourth Proportional to 945,878.60, 1,418,271.78 and 646,721.48

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Solution

The fourth proportional to 945,878.60, 1,418,271.78 and 646,721.48 is: 969,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,878.60 : 1,418,271.78 = 646,721.48 : x
  2. Step 2: Convert to fraction form
    945,878.60/1,418,271.78 = 646,721.48/x
  3. Step 3: Cross multiply
    945,878.60x = 1,418,271.78 × 646,721.48
  4. Step 4: Simplify right side
    945,878.60x = 917,226,824,603.83
  5. Step 5: Solve for x
    x = 917,226,824,603.83/945,878.60
  6. Step 6: Final answer
    x = 969,708.82

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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.