Home / 1,025,897.40-1,539,400.14-427,271.76

Finding the Fourth Proportional to 1,025,897.40, 1,539,400.14 and 427,271.76

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Solution

The fourth proportional to 1,025,897.40, 1,539,400.14 and 427,271.76 is: 641,138.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,897.40 : 1,539,400.14 = 427,271.76 : x
  2. Step 2: Convert to fraction form
    1,025,897.40/1,539,400.14 = 427,271.76/x
  3. Step 3: Cross multiply
    1,025,897.40x = 1,539,400.14 × 427,271.76
  4. Step 4: Simplify right side
    1,025,897.40x = 657,742,207,162.05
  5. Step 5: Solve for x
    x = 657,742,207,162.05/1,025,897.40
  6. Step 6: Final answer
    x = 641,138.39

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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.