Home / 761,643.72-1,135,656.28-740,718.23

Finding the Fourth Proportional to 761,643.72, 1,135,656.28 and 740,718.23

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Solution

The fourth proportional to 761,643.72, 1,135,656.28 and 740,718.23 is: 1,104,455.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,643.72 : 1,135,656.28 = 740,718.23 : x
  2. Step 2: Convert to fraction form
    761,643.72/1,135,656.28 = 740,718.23/x
  3. Step 3: Cross multiply
    761,643.72x = 1,135,656.28 × 740,718.23
  4. Step 4: Simplify right side
    761,643.72x = 841,201,309,609.98
  5. Step 5: Solve for x
    x = 841,201,309,609.98/761,643.72
  6. Step 6: Final answer
    x = 1,104,455.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.