Home / 931,356.77-1,395,866.48-398,250.92

Finding the Fourth Proportional to 931,356.77, 1,395,866.48 and 398,250.92

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Solution

The fourth proportional to 931,356.77, 1,395,866.48 and 398,250.92 is: 596,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,356.77 : 1,395,866.48 = 398,250.92 : x
  2. Step 2: Convert to fraction form
    931,356.77/1,395,866.48 = 398,250.92/x
  3. Step 3: Cross multiply
    931,356.77x = 1,395,866.48 × 398,250.92
  4. Step 4: Simplify right side
    931,356.77x = 555,905,101,820.90
  5. Step 5: Solve for x
    x = 555,905,101,820.90/931,356.77
  6. Step 6: Final answer
    x = 596,876.64

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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.