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Finding the Fourth Proportional to 717,713.03, 990,335.89 and 407,567.27

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Solution

The fourth proportional to 717,713.03, 990,335.89 and 407,567.27 is: 562,381.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,713.03 : 990,335.89 = 407,567.27 : x
  2. Step 2: Convert to fraction form
    717,713.03/990,335.89 = 407,567.27/x
  3. Step 3: Cross multiply
    717,713.03x = 990,335.89 × 407,567.27
  4. Step 4: Simplify right side
    717,713.03x = 403,628,495,070.32
  5. Step 5: Solve for x
    x = 403,628,495,070.32/717,713.03
  6. Step 6: Final answer
    x = 562,381.45

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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.