Home / 450,281.72-621,254.76-259,290.20

Finding the Fourth Proportional to 450,281.72, 621,254.76 and 259,290.20

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Solution

The fourth proportional to 450,281.72, 621,254.76 and 259,290.20 is: 357,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,281.72 : 621,254.76 = 259,290.20 : x
  2. Step 2: Convert to fraction form
    450,281.72/621,254.76 = 259,290.20/x
  3. Step 3: Cross multiply
    450,281.72x = 621,254.76 × 259,290.20
  4. Step 4: Simplify right side
    450,281.72x = 161,085,270,971.35
  5. Step 5: Solve for x
    x = 161,085,270,971.35/450,281.72
  6. Step 6: Final answer
    x = 357,743.31

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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.