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Finding the Fourth Proportional to 525,470.15, 725,107.06 and 343,894.48

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Solution

The fourth proportional to 525,470.15, 725,107.06 and 343,894.48 is: 474,547.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,470.15 : 725,107.06 = 343,894.48 : x
  2. Step 2: Convert to fraction form
    525,470.15/725,107.06 = 343,894.48/x
  3. Step 3: Cross multiply
    525,470.15x = 725,107.06 × 343,894.48
  4. Step 4: Simplify right side
    525,470.15x = 249,360,315,343.03
  5. Step 5: Solve for x
    x = 249,360,315,343.03/525,470.15
  6. Step 6: Final answer
    x = 474,547.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.