Home / 1,307,142.40-1,957,603.20-803,257.60

Finding the Fourth Proportional to 1,307,142.40, 1,957,603.20 and 803,257.60

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Solution

The fourth proportional to 1,307,142.40, 1,957,603.20 and 803,257.60 is: 1,202,975.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,142.40 : 1,957,603.20 = 803,257.60 : x
  2. Step 2: Convert to fraction form
    1,307,142.40/1,957,603.20 = 803,257.60/x
  3. Step 3: Cross multiply
    1,307,142.40x = 1,957,603.20 × 803,257.60
  4. Step 4: Simplify right side
    1,307,142.40x = 1,572,459,648,184.32
  5. Step 5: Solve for x
    x = 1,572,459,648,184.32/1,307,142.40
  6. Step 6: Final answer
    x = 1,202,975.01

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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.