Home / 645,030.55-966,626.97-475,215.40

Finding the Fourth Proportional to 645,030.55, 966,626.97 and 475,215.40

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Solution

The fourth proportional to 645,030.55, 966,626.97 and 475,215.40 is: 712,146.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,030.55 : 966,626.97 = 475,215.40 : x
  2. Step 2: Convert to fraction form
    645,030.55/966,626.97 = 475,215.40/x
  3. Step 3: Cross multiply
    645,030.55x = 966,626.97 × 475,215.40
  4. Step 4: Simplify right side
    645,030.55x = 459,356,022,199.34
  5. Step 5: Solve for x
    x = 459,356,022,199.34/645,030.55
  6. Step 6: Final answer
    x = 712,146.15

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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.