Home / 977,442.40-1,465,703.48-378,683.92

Finding the Fourth Proportional to 977,442.40, 1,465,703.48 and 378,683.92

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Solution

The fourth proportional to 977,442.40, 1,465,703.48 and 378,683.92 is: 567,847.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,442.40 : 1,465,703.48 = 378,683.92 : x
  2. Step 2: Convert to fraction form
    977,442.40/1,465,703.48 = 378,683.92/x
  3. Step 3: Cross multiply
    977,442.40x = 1,465,703.48 × 378,683.92
  4. Step 4: Simplify right side
    977,442.40x = 555,038,339,364.04
  5. Step 5: Solve for x
    x = 555,038,339,364.04/977,442.40
  6. Step 6: Final answer
    x = 567,847.62

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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.