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Finding the Fourth Proportional to 660,001.47, 910,671.98 and 401,809.11

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Solution

The fourth proportional to 660,001.47, 910,671.98 and 401,809.11 is: 554,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,001.47 : 910,671.98 = 401,809.11 : x
  2. Step 2: Convert to fraction form
    660,001.47/910,671.98 = 401,809.11/x
  3. Step 3: Cross multiply
    660,001.47x = 910,671.98 × 401,809.11
  4. Step 4: Simplify right side
    660,001.47x = 365,916,295,776.69
  5. Step 5: Solve for x
    x = 365,916,295,776.69/660,001.47
  6. Step 6: Final answer
    x = 554,417.40

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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.