Home / 1,312,422.75-1,968,908.85-554,266.40

Finding the Fourth Proportional to 1,312,422.75, 1,968,908.85 and 554,266.40

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Solution

The fourth proportional to 1,312,422.75, 1,968,908.85 and 554,266.40 is: 831,515.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,422.75 : 1,968,908.85 = 554,266.40 : x
  2. Step 2: Convert to fraction form
    1,312,422.75/1,968,908.85 = 554,266.40/x
  3. Step 3: Cross multiply
    1,312,422.75x = 1,968,908.85 × 554,266.40
  4. Step 4: Simplify right side
    1,312,422.75x = 1,091,300,010,373.10
  5. Step 5: Solve for x
    x = 1,091,300,010,373.10/1,312,422.75
  6. Step 6: Final answer
    x = 831,515.62

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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.