Home / 462,905.55-638,868.47-258,967.80

Finding the Fourth Proportional to 462,905.55, 638,868.47 and 258,967.80

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Solution

The fourth proportional to 462,905.55, 638,868.47 and 258,967.80 is: 357,408.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,905.55 : 638,868.47 = 258,967.80 : x
  2. Step 2: Convert to fraction form
    462,905.55/638,868.47 = 258,967.80/x
  3. Step 3: Cross multiply
    462,905.55x = 638,868.47 × 258,967.80
  4. Step 4: Simplify right side
    462,905.55x = 165,446,360,870.43
  5. Step 5: Solve for x
    x = 165,446,360,870.43/462,905.55
  6. Step 6: Final answer
    x = 357,408.46

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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.