Home / 805,453.88-1,111,497.90-442,875.20

Finding the Fourth Proportional to 805,453.88, 1,111,497.90 and 442,875.20

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Solution

The fourth proportional to 805,453.88, 1,111,497.90 and 442,875.20 is: 611,152.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,453.88 : 1,111,497.90 = 442,875.20 : x
  2. Step 2: Convert to fraction form
    805,453.88/1,111,497.90 = 442,875.20/x
  3. Step 3: Cross multiply
    805,453.88x = 1,111,497.90 × 442,875.20
  4. Step 4: Simplify right side
    805,453.88x = 492,254,847,543.81
  5. Step 5: Solve for x
    x = 492,254,847,543.81/805,453.88
  6. Step 6: Final answer
    x = 611,152.13

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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.