Home / 740,601.72-1,109,415.06-340,686.36

Finding the Fourth Proportional to 740,601.72, 1,109,415.06 and 340,686.36

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Solution

The fourth proportional to 740,601.72, 1,109,415.06 and 340,686.36 is: 510,345.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,601.72 : 1,109,415.06 = 340,686.36 : x
  2. Step 2: Convert to fraction form
    740,601.72/1,109,415.06 = 340,686.36/x
  3. Step 3: Cross multiply
    740,601.72x = 1,109,415.06 × 340,686.36
  4. Step 4: Simplify right side
    740,601.72x = 377,962,578,520.58
  5. Step 5: Solve for x
    x = 377,962,578,520.58/740,601.72
  6. Step 6: Final answer
    x = 510,345.26

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1.5x scale

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.