Home / 687,421.95-1,030,886.88-238,022.16

Finding the Fourth Proportional to 687,421.95, 1,030,886.88 and 238,022.16

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Solution

The fourth proportional to 687,421.95, 1,030,886.88 and 238,022.16 is: 356,948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,421.95 : 1,030,886.88 = 238,022.16 : x
  2. Step 2: Convert to fraction form
    687,421.95/1,030,886.88 = 238,022.16/x
  3. Step 3: Cross multiply
    687,421.95x = 1,030,886.88 × 238,022.16
  4. Step 4: Simplify right side
    687,421.95x = 245,373,921,893.26
  5. Step 5: Solve for x
    x = 245,373,921,893.26/687,421.95
  6. Step 6: Final answer
    x = 356,948.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.