Home / 916,666.77-1,264,981.08-508,744.68

Finding the Fourth Proportional to 916,666.77, 1,264,981.08 and 508,744.68

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Solution

The fourth proportional to 916,666.77, 1,264,981.08 and 508,744.68 is: 702,057.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,666.77 : 1,264,981.08 = 508,744.68 : x
  2. Step 2: Convert to fraction form
    916,666.77/1,264,981.08 = 508,744.68/x
  3. Step 3: Cross multiply
    916,666.77x = 1,264,981.08 × 508,744.68
  4. Step 4: Simplify right side
    916,666.77x = 643,552,394,750.65
  5. Step 5: Solve for x
    x = 643,552,394,750.65/916,666.77
  6. Step 6: Final answer
    x = 702,057.08

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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.