Home / 641,852.16-962,979.65-385,979.23

Finding the Fourth Proportional to 641,852.16, 962,979.65 and 385,979.23

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Solution

The fourth proportional to 641,852.16, 962,979.65 and 385,979.23 is: 579,089.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,852.16 : 962,979.65 = 385,979.23 : x
  2. Step 2: Convert to fraction form
    641,852.16/962,979.65 = 385,979.23/x
  3. Step 3: Cross multiply
    641,852.16x = 962,979.65 × 385,979.23
  4. Step 4: Simplify right side
    641,852.16x = 371,690,143,812.67
  5. Step 5: Solve for x
    x = 371,690,143,812.67/641,852.16
  6. Step 6: Final answer
    x = 579,089.96

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1.5x scale

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.