Home / 977,105.16-1,465,676.46-642,283.08

Finding the Fourth Proportional to 977,105.16, 1,465,676.46 and 642,283.08

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Solution

The fourth proportional to 977,105.16, 1,465,676.46 and 642,283.08 is: 963,436.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,105.16 : 1,465,676.46 = 642,283.08 : x
  2. Step 2: Convert to fraction form
    977,105.16/1,465,676.46 = 642,283.08/x
  3. Step 3: Cross multiply
    977,105.16x = 1,465,676.46 × 642,283.08
  4. Step 4: Simplify right side
    977,105.16x = 941,379,191,012.30
  5. Step 5: Solve for x
    x = 941,379,191,012.30/977,105.16
  6. Step 6: Final answer
    x = 963,436.93

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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.