Home / 485,765.29-723,763.93-458,602.75

Finding the Fourth Proportional to 485,765.29, 723,763.93 and 458,602.75

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Solution

The fourth proportional to 485,765.29, 723,763.93 and 458,602.75 is: 683,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,765.29 : 723,763.93 = 458,602.75 : x
  2. Step 2: Convert to fraction form
    485,765.29/723,763.93 = 458,602.75/x
  3. Step 3: Cross multiply
    485,765.29x = 723,763.93 × 458,602.75
  4. Step 4: Simplify right side
    485,765.29x = 331,920,128,648.81
  5. Step 5: Solve for x
    x = 331,920,128,648.81/485,765.29
  6. Step 6: Final answer
    x = 683,293.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.