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Finding the Fourth Proportional to 602,413.40, 903,620.10 and 331,808.60

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Solution

The fourth proportional to 602,413.40, 903,620.10 and 331,808.60 is: 497,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,413.40 : 903,620.10 = 331,808.60 : x
  2. Step 2: Convert to fraction form
    602,413.40/903,620.10 = 331,808.60/x
  3. Step 3: Cross multiply
    602,413.40x = 903,620.10 × 331,808.60
  4. Step 4: Simplify right side
    602,413.40x = 299,828,920,312.86
  5. Step 5: Solve for x
    x = 299,828,920,312.86/602,413.40
  6. Step 6: Final answer
    x = 497,712.90

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1.5x scale

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.