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Finding the Fourth Proportional to 909,813.32, 1,365,902.58 and 699,598.88

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Solution

The fourth proportional to 909,813.32, 1,365,902.58 and 699,598.88 is: 1,050,307.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,813.32 : 1,365,902.58 = 699,598.88 : x
  2. Step 2: Convert to fraction form
    909,813.32/1,365,902.58 = 699,598.88/x
  3. Step 3: Cross multiply
    909,813.32x = 1,365,902.58 × 699,598.88
  4. Step 4: Simplify right side
    909,813.32x = 955,583,915,157.11
  5. Step 5: Solve for x
    x = 955,583,915,157.11/909,813.32
  6. Step 6: Final answer
    x = 1,050,307.68

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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.