Home / 912,435.22-1,368,848.40-272,789.02

Finding the Fourth Proportional to 912,435.22, 1,368,848.40 and 272,789.02

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Solution

The fourth proportional to 912,435.22, 1,368,848.40 and 272,789.02 is: 409,242.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,435.22 : 1,368,848.40 = 272,789.02 : x
  2. Step 2: Convert to fraction form
    912,435.22/1,368,848.40 = 272,789.02/x
  3. Step 3: Cross multiply
    912,435.22x = 1,368,848.40 × 272,789.02
  4. Step 4: Simplify right side
    912,435.22x = 373,406,813,564.57
  5. Step 5: Solve for x
    x = 373,406,813,564.57/912,435.22
  6. Step 6: Final answer
    x = 409,242.00

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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.