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Finding the Fourth Proportional to 669,987.40, 924,662.48 and 383,599.48

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Solution

The fourth proportional to 669,987.40, 924,662.48 and 383,599.48 is: 529,413.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,987.40 : 924,662.48 = 383,599.48 : x
  2. Step 2: Convert to fraction form
    669,987.40/924,662.48 = 383,599.48/x
  3. Step 3: Cross multiply
    669,987.40x = 924,662.48 × 383,599.48
  4. Step 4: Simplify right side
    669,987.40x = 354,700,046,503.51
  5. Step 5: Solve for x
    x = 354,700,046,503.51/669,987.40
  6. Step 6: Final answer
    x = 529,413.01

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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.