Home / 916,589.70-1,264,907.43-508,717.83

Finding the Fourth Proportional to 916,589.70, 1,264,907.43 and 508,717.83

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Solution

The fourth proportional to 916,589.70, 1,264,907.43 and 508,717.83 is: 702,038.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,589.70 : 1,264,907.43 = 508,717.83 : x
  2. Step 2: Convert to fraction form
    916,589.70/1,264,907.43 = 508,717.83/x
  3. Step 3: Cross multiply
    916,589.70x = 1,264,907.43 × 508,717.83
  4. Step 4: Simplify right side
    916,589.70x = 643,480,962,940.48
  5. Step 5: Solve for x
    x = 643,480,962,940.48/916,589.70
  6. Step 6: Final answer
    x = 702,038.18

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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.