Home / 760,887.64-1,050,057.92-421,355.88

Finding the Fourth Proportional to 760,887.64, 1,050,057.92 and 421,355.88

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Solution

The fourth proportional to 760,887.64, 1,050,057.92 and 421,355.88 is: 581,489.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,887.64 : 1,050,057.92 = 421,355.88 : x
  2. Step 2: Convert to fraction form
    760,887.64/1,050,057.92 = 421,355.88/x
  3. Step 3: Cross multiply
    760,887.64x = 1,050,057.92 × 421,355.88
  4. Step 4: Simplify right side
    760,887.64x = 442,448,078,932.57
  5. Step 5: Solve for x
    x = 442,448,078,932.57/760,887.64
  6. Step 6: Final answer
    x = 581,489.38

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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.