Home / 931,458.90-1,397,188.35-842,885.40

Finding the Fourth Proportional to 931,458.90, 1,397,188.35 and 842,885.40

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Solution

The fourth proportional to 931,458.90, 1,397,188.35 and 842,885.40 is: 1,264,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,458.90 : 1,397,188.35 = 842,885.40 : x
  2. Step 2: Convert to fraction form
    931,458.90/1,397,188.35 = 842,885.40/x
  3. Step 3: Cross multiply
    931,458.90x = 1,397,188.35 × 842,885.40
  4. Step 4: Simplify right side
    931,458.90x = 1,177,669,661,265.09
  5. Step 5: Solve for x
    x = 1,177,669,661,265.09/931,458.90
  6. Step 6: Final answer
    x = 1,264,328.10

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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.