Home / 885,726.64-1,221,881.75-522,907.43

Finding the Fourth Proportional to 885,726.64, 1,221,881.75 and 522,907.43

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Solution

The fourth proportional to 885,726.64, 1,221,881.75 and 522,907.43 is: 721,363.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,726.64 : 1,221,881.75 = 522,907.43 : x
  2. Step 2: Convert to fraction form
    885,726.64/1,221,881.75 = 522,907.43/x
  3. Step 3: Cross multiply
    885,726.64x = 1,221,881.75 × 522,907.43
  4. Step 4: Simplify right side
    885,726.64x = 638,931,043,041.87
  5. Step 5: Solve for x
    x = 638,931,043,041.87/885,726.64
  6. Step 6: Final answer
    x = 721,363.70

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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.