Home / 1,345,901.40-1,857,292.38-742,289.40

Finding the Fourth Proportional to 1,345,901.40, 1,857,292.38 and 742,289.40

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Solution

The fourth proportional to 1,345,901.40, 1,857,292.38 and 742,289.40 is: 1,024,330.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,901.40 : 1,857,292.38 = 742,289.40 : x
  2. Step 2: Convert to fraction form
    1,345,901.40/1,857,292.38 = 742,289.40/x
  3. Step 3: Cross multiply
    1,345,901.40x = 1,857,292.38 × 742,289.40
  4. Step 4: Simplify right side
    1,345,901.40x = 1,378,648,446,374.77
  5. Step 5: Solve for x
    x = 1,378,648,446,374.77/1,345,901.40
  6. Step 6: Final answer
    x = 1,024,330.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.