Home / 1,107,702.96-1,528,632.18-642,647.10

Finding the Fourth Proportional to 1,107,702.96, 1,528,632.18 and 642,647.10

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Solution

The fourth proportional to 1,107,702.96, 1,528,632.18 and 642,647.10 is: 886,854.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,702.96 : 1,528,632.18 = 642,647.10 : x
  2. Step 2: Convert to fraction form
    1,107,702.96/1,528,632.18 = 642,647.10/x
  3. Step 3: Cross multiply
    1,107,702.96x = 1,528,632.18 × 642,647.10
  4. Step 4: Simplify right side
    1,107,702.96x = 982,371,037,443.68
  5. Step 5: Solve for x
    x = 982,371,037,443.68/1,107,702.96
  6. Step 6: Final answer
    x = 886,854.21

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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.