Home / 761,999.48-1,142,199.09-256,384.92

Finding the Fourth Proportional to 761,999.48, 1,142,199.09 and 256,384.92

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Solution

The fourth proportional to 761,999.48, 1,142,199.09 and 256,384.92 is: 384,308.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,999.48 : 1,142,199.09 = 256,384.92 : x
  2. Step 2: Convert to fraction form
    761,999.48/1,142,199.09 = 256,384.92/x
  3. Step 3: Cross multiply
    761,999.48x = 1,142,199.09 × 256,384.92
  4. Step 4: Simplify right side
    761,999.48x = 292,842,622,313.72
  5. Step 5: Solve for x
    x = 292,842,622,313.72/761,999.48
  6. Step 6: Final answer
    x = 384,308.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.