Home / 1,345,415.40-2,017,430.55-398,663.10

Finding the Fourth Proportional to 1,345,415.40, 2,017,430.55 and 398,663.10

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Solution

The fourth proportional to 1,345,415.40, 2,017,430.55 and 398,663.10 is: 597,789.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,415.40 : 2,017,430.55 = 398,663.10 : x
  2. Step 2: Convert to fraction form
    1,345,415.40/2,017,430.55 = 398,663.10/x
  3. Step 3: Cross multiply
    1,345,415.40x = 2,017,430.55 × 398,663.10
  4. Step 4: Simplify right side
    1,345,415.40x = 804,275,117,097.71
  5. Step 5: Solve for x
    x = 804,275,117,097.71/1,345,415.40
  6. Step 6: Final answer
    x = 597,789.44

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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.