Home / 486,352.04-671,047.62-285,109.16

Finding the Fourth Proportional to 486,352.04, 671,047.62 and 285,109.16

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Solution

The fourth proportional to 486,352.04, 671,047.62 and 285,109.16 is: 393,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,352.04 : 671,047.62 = 285,109.16 : x
  2. Step 2: Convert to fraction form
    486,352.04/671,047.62 = 285,109.16/x
  3. Step 3: Cross multiply
    486,352.04x = 671,047.62 × 285,109.16
  4. Step 4: Simplify right side
    486,352.04x = 191,321,823,258.20
  5. Step 5: Solve for x
    x = 191,321,823,258.20/486,352.04
  6. Step 6: Final answer
    x = 393,381.35

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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.