Home / 931,240-1,285,111.36-507,304

Finding the Fourth Proportional to 931,240, 1,285,111.36 and 507,304

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Solution

The fourth proportional to 931,240, 1,285,111.36 and 507,304 is: 700,079.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,240 : 1,285,111.36 = 507,304 : x
  2. Step 2: Convert to fraction form
    931,240/1,285,111.36 = 507,304/x
  3. Step 3: Cross multiply
    931,240x = 1,285,111.36 × 507,304
  4. Step 4: Simplify right side
    931,240x = 651,942,133,373.44
  5. Step 5: Solve for x
    x = 651,942,133,373.44/931,240
  6. Step 6: Final answer
    x = 700,079.61

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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.