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Finding the Fourth Proportional to 670,482.72, 999,407.91 and 616,674.34

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Solution

The fourth proportional to 670,482.72, 999,407.91 and 616,674.34 is: 919,202.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,482.72 : 999,407.91 = 616,674.34 : x
  2. Step 2: Convert to fraction form
    670,482.72/999,407.91 = 616,674.34/x
  3. Step 3: Cross multiply
    670,482.72x = 999,407.91 × 616,674.34
  4. Step 4: Simplify right side
    670,482.72x = 616,309,213,290.03
  5. Step 5: Solve for x
    x = 616,309,213,290.03/670,482.72
  6. Step 6: Final answer
    x = 919,202.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.