Home / 916,639.18-1,264,943.04-508,717.34

Finding the Fourth Proportional to 916,639.18, 1,264,943.04 and 508,717.34

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Solution

The fourth proportional to 916,639.18, 1,264,943.04 and 508,717.34 is: 702,019.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,639.18 : 1,264,943.04 = 508,717.34 : x
  2. Step 2: Convert to fraction form
    916,639.18/1,264,943.04 = 508,717.34/x
  3. Step 3: Cross multiply
    916,639.18x = 1,264,943.04 × 508,717.34
  4. Step 4: Simplify right side
    916,639.18x = 643,498,458,560.31
  5. Step 5: Solve for x
    x = 643,498,458,560.31/916,639.18
  6. Step 6: Final answer
    x = 702,019.37

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Double scale
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1.5x scale

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.