Home / 708,134.38-977,225.55-385,844.51

Finding the Fourth Proportional to 708,134.38, 977,225.55 and 385,844.51

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Solution

The fourth proportional to 708,134.38, 977,225.55 and 385,844.51 is: 532,465.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,134.38 : 977,225.55 = 385,844.51 : x
  2. Step 2: Convert to fraction form
    708,134.38/977,225.55 = 385,844.51/x
  3. Step 3: Cross multiply
    708,134.38x = 977,225.55 × 385,844.51
  4. Step 4: Simplify right side
    708,134.38x = 377,057,113,499.23
  5. Step 5: Solve for x
    x = 377,057,113,499.23/708,134.38
  6. Step 6: Final answer
    x = 532,465.49

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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.