Home / 692,155.02-1,038,226.41-218,840.70

Finding the Fourth Proportional to 692,155.02, 1,038,226.41 and 218,840.70

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Solution

The fourth proportional to 692,155.02, 1,038,226.41 and 218,840.70 is: 328,259.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,155.02 : 1,038,226.41 = 218,840.70 : x
  2. Step 2: Convert to fraction form
    692,155.02/1,038,226.41 = 218,840.70/x
  3. Step 3: Cross multiply
    692,155.02x = 1,038,226.41 × 218,840.70
  4. Step 4: Simplify right side
    692,155.02x = 227,206,194,322.89
  5. Step 5: Solve for x
    x = 227,206,194,322.89/692,155.02
  6. Step 6: Final answer
    x = 328,259.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.