Home / 940,123.08-1,297,369.80-510,403.20

Finding the Fourth Proportional to 940,123.08, 1,297,369.80 and 510,403.20

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Solution

The fourth proportional to 940,123.08, 1,297,369.80 and 510,403.20 is: 704,356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,123.08 : 1,297,369.80 = 510,403.20 : x
  2. Step 2: Convert to fraction form
    940,123.08/1,297,369.80 = 510,403.20/x
  3. Step 3: Cross multiply
    940,123.08x = 1,297,369.80 × 510,403.20
  4. Step 4: Simplify right side
    940,123.08x = 662,181,697,503.36
  5. Step 5: Solve for x
    x = 662,181,697,503.36/940,123.08
  6. Step 6: Final answer
    x = 704,356.39

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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.