Home / 664,246.48-916,680.40-377,807.84

Finding the Fourth Proportional to 664,246.48, 916,680.40 and 377,807.84

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Solution

The fourth proportional to 664,246.48, 916,680.40 and 377,807.84 is: 521,386.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,246.48 : 916,680.40 = 377,807.84 : x
  2. Step 2: Convert to fraction form
    664,246.48/916,680.40 = 377,807.84/x
  3. Step 3: Cross multiply
    664,246.48x = 916,680.40 × 377,807.84
  4. Step 4: Simplify right side
    664,246.48x = 346,329,041,894.34
  5. Step 5: Solve for x
    x = 346,329,041,894.34/664,246.48
  6. Step 6: Final answer
    x = 521,386.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.