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Finding the Fourth Proportional to 977,645.60, 1,466,468.40 and 859,450.40

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Solution

The fourth proportional to 977,645.60, 1,466,468.40 and 859,450.40 is: 1,289,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,645.60 : 1,466,468.40 = 859,450.40 : x
  2. Step 2: Convert to fraction form
    977,645.60/1,466,468.40 = 859,450.40/x
  3. Step 3: Cross multiply
    977,645.60x = 1,466,468.40 × 859,450.40
  4. Step 4: Simplify right side
    977,645.60x = 1,260,356,852,967.36
  5. Step 5: Solve for x
    x = 1,260,356,852,967.36/977,645.60
  6. Step 6: Final answer
    x = 1,289,175.60

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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.