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Finding the Fourth Proportional to 554,762.90, 765,594.51 and 325,288.28

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Solution

The fourth proportional to 554,762.90, 765,594.51 and 325,288.28 is: 448,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,762.90 : 765,594.51 = 325,288.28 : x
  2. Step 2: Convert to fraction form
    554,762.90/765,594.51 = 325,288.28/x
  3. Step 3: Cross multiply
    554,762.90x = 765,594.51 × 325,288.28
  4. Step 4: Simplify right side
    554,762.90x = 249,038,921,335.34
  5. Step 5: Solve for x
    x = 249,038,921,335.34/554,762.90
  6. Step 6: Final answer
    x = 448,910.56

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1.5x scale

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.