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Finding the Fourth Proportional to 602,071.99, 830,178.32 and 383,988.96

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Solution

The fourth proportional to 602,071.99, 830,178.32 and 383,988.96 is: 529,470.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,071.99 : 830,178.32 = 383,988.96 : x
  2. Step 2: Convert to fraction form
    602,071.99/830,178.32 = 383,988.96/x
  3. Step 3: Cross multiply
    602,071.99x = 830,178.32 × 383,988.96
  4. Step 4: Simplify right side
    602,071.99x = 318,779,307,791.40
  5. Step 5: Solve for x
    x = 318,779,307,791.40/602,071.99
  6. Step 6: Final answer
    x = 529,470.42

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1.5x scale

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.