Home / 904,210.40-1,356,542.40-398,867.60

Finding the Fourth Proportional to 904,210.40, 1,356,542.40 and 398,867.60

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Solution

The fourth proportional to 904,210.40, 1,356,542.40 and 398,867.60 is: 598,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,210.40 : 1,356,542.40 = 398,867.60 : x
  2. Step 2: Convert to fraction form
    904,210.40/1,356,542.40 = 398,867.60/x
  3. Step 3: Cross multiply
    904,210.40x = 1,356,542.40 × 398,867.60
  4. Step 4: Simplify right side
    904,210.40x = 541,080,811,386.24
  5. Step 5: Solve for x
    x = 541,080,811,386.24/904,210.40
  6. Step 6: Final answer
    x = 598,401.45

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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.