Home / 713,079.60-983,890.20-407,058.48

Finding the Fourth Proportional to 713,079.60, 983,890.20 and 407,058.48

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Solution

The fourth proportional to 713,079.60, 983,890.20 and 407,058.48 is: 561,649.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,079.60 : 983,890.20 = 407,058.48 : x
  2. Step 2: Convert to fraction form
    713,079.60/983,890.20 = 407,058.48/x
  3. Step 3: Cross multiply
    713,079.60x = 983,890.20 × 407,058.48
  4. Step 4: Simplify right side
    713,079.60x = 400,500,849,298.90
  5. Step 5: Solve for x
    x = 400,500,849,298.90/713,079.60
  6. Step 6: Final answer
    x = 561,649.57

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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.