Home / 805,477.02-1,111,281.70-499,443.27

Finding the Fourth Proportional to 805,477.02, 1,111,281.70 and 499,443.27

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Solution

The fourth proportional to 805,477.02, 1,111,281.70 and 499,443.27 is: 689,060.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,477.02 : 1,111,281.70 = 499,443.27 : x
  2. Step 2: Convert to fraction form
    805,477.02/1,111,281.70 = 499,443.27/x
  3. Step 3: Cross multiply
    805,477.02x = 1,111,281.70 × 499,443.27
  4. Step 4: Simplify right side
    805,477.02x = 555,022,166,139.16
  5. Step 5: Solve for x
    x = 555,022,166,139.16/805,477.02
  6. Step 6: Final answer
    x = 689,060.21

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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.