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Finding the Fourth Proportional to 675,053.15, 931,602.30 and 369,111.29

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Solution

The fourth proportional to 675,053.15, 931,602.30 and 369,111.29 is: 509,389.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,053.15 : 931,602.30 = 369,111.29 : x
  2. Step 2: Convert to fraction form
    675,053.15/931,602.30 = 369,111.29/x
  3. Step 3: Cross multiply
    675,053.15x = 931,602.30 × 369,111.29
  4. Step 4: Simplify right side
    675,053.15x = 343,864,926,719.97
  5. Step 5: Solve for x
    x = 343,864,926,719.97/675,053.15
  6. Step 6: Final answer
    x = 509,389.41

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1.5x scale

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.