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Finding the Fourth Proportional to 977,663.80, 1,465,329.30 and 877,353.40

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Solution

The fourth proportional to 977,663.80, 1,465,329.30 and 877,353.40 is: 1,314,983.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,663.80 : 1,465,329.30 = 877,353.40 : x
  2. Step 2: Convert to fraction form
    977,663.80/1,465,329.30 = 877,353.40/x
  3. Step 3: Cross multiply
    977,663.80x = 1,465,329.30 × 877,353.40
  4. Step 4: Simplify right side
    977,663.80x = 1,285,611,643,474.62
  5. Step 5: Solve for x
    x = 1,285,611,643,474.62/977,663.80
  6. Step 6: Final answer
    x = 1,314,983.38

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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.