Home / 719,888.51-1,080,029.63-315,007.11

Finding the Fourth Proportional to 719,888.51, 1,080,029.63 and 315,007.11

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Solution

The fourth proportional to 719,888.51, 1,080,029.63 and 315,007.11 is: 472,596.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,888.51 : 1,080,029.63 = 315,007.11 : x
  2. Step 2: Convert to fraction form
    719,888.51/1,080,029.63 = 315,007.11/x
  3. Step 3: Cross multiply
    719,888.51x = 1,080,029.63 × 315,007.11
  4. Step 4: Simplify right side
    719,888.51x = 340,217,013,248.19
  5. Step 5: Solve for x
    x = 340,217,013,248.19/719,888.51
  6. Step 6: Final answer
    x = 472,596.81

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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.