Home / 708,261.77-977,401.38-385,971.92

Finding the Fourth Proportional to 708,261.77, 977,401.38 and 385,971.92

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Solution

The fourth proportional to 708,261.77, 977,401.38 and 385,971.92 is: 532,641.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,261.77 : 977,401.38 = 385,971.92 : x
  2. Step 2: Convert to fraction form
    708,261.77/977,401.38 = 385,971.92/x
  3. Step 3: Cross multiply
    708,261.77x = 977,401.38 × 385,971.92
  4. Step 4: Simplify right side
    708,261.77x = 377,249,487,474.89
  5. Step 5: Solve for x
    x = 377,249,487,474.89/708,261.77
  6. Step 6: Final answer
    x = 532,641.32

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Double scale
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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.