Home / 805,360.48-1,111,399.68-442,821.40

Finding the Fourth Proportional to 805,360.48, 1,111,399.68 and 442,821.40

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Solution

The fourth proportional to 805,360.48, 1,111,399.68 and 442,821.40 is: 611,094.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,360.48 : 1,111,399.68 = 442,821.40 : x
  2. Step 2: Convert to fraction form
    805,360.48/1,111,399.68 = 442,821.40/x
  3. Step 3: Cross multiply
    805,360.48x = 1,111,399.68 × 442,821.40
  4. Step 4: Simplify right side
    805,360.48x = 492,151,562,257.15
  5. Step 5: Solve for x
    x = 492,151,562,257.15/805,360.48
  6. Step 6: Final answer
    x = 611,094.75

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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.