Home / 983,315.36-1,475,128.56-352,215.20

Finding the Fourth Proportional to 983,315.36, 1,475,128.56 and 352,215.20

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Solution

The fourth proportional to 983,315.36, 1,475,128.56 and 352,215.20 is: 528,378.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,315.36 : 1,475,128.56 = 352,215.20 : x
  2. Step 2: Convert to fraction form
    983,315.36/1,475,128.56 = 352,215.20/x
  3. Step 3: Cross multiply
    983,315.36x = 1,475,128.56 × 352,215.20
  4. Step 4: Simplify right side
    983,315.36x = 519,562,700,786.11
  5. Step 5: Solve for x
    x = 519,562,700,786.11/983,315.36
  6. Step 6: Final answer
    x = 528,378.51

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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.