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Finding the Fourth Proportional to 602,783.40, 903,138.30 and 286,559.40

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Solution

The fourth proportional to 602,783.40, 903,138.30 and 286,559.40 is: 429,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,783.40 : 903,138.30 = 286,559.40 : x
  2. Step 2: Convert to fraction form
    602,783.40/903,138.30 = 286,559.40/x
  3. Step 3: Cross multiply
    602,783.40x = 903,138.30 × 286,559.40
  4. Step 4: Simplify right side
    602,783.40x = 258,802,769,365.02
  5. Step 5: Solve for x
    x = 258,802,769,365.02/602,783.40
  6. Step 6: Final answer
    x = 429,346.21

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