Home / 465,674.46-642,152.25-389,165.01

Finding the Fourth Proportional to 465,674.46, 642,152.25 and 389,165.01

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Solution

The fourth proportional to 465,674.46, 642,152.25 and 389,165.01 is: 536,647.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,674.46 : 642,152.25 = 389,165.01 : x
  2. Step 2: Convert to fraction form
    465,674.46/642,152.25 = 389,165.01/x
  3. Step 3: Cross multiply
    465,674.46x = 642,152.25 × 389,165.01
  4. Step 4: Simplify right side
    465,674.46x = 249,903,186,792.77
  5. Step 5: Solve for x
    x = 249,903,186,792.77/465,674.46
  6. Step 6: Final answer
    x = 536,647.83

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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.