Home / 993,430.32-1,490,435.82-319,496.52

Finding the Fourth Proportional to 993,430.32, 1,490,435.82 and 319,496.52

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Solution

The fourth proportional to 993,430.32, 1,490,435.82 and 319,496.52 is: 479,338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,430.32 : 1,490,435.82 = 319,496.52 : x
  2. Step 2: Convert to fraction form
    993,430.32/1,490,435.82 = 319,496.52/x
  3. Step 3: Cross multiply
    993,430.32x = 1,490,435.82 × 319,496.52
  4. Step 4: Simplify right side
    993,430.32x = 476,189,057,773.35
  5. Step 5: Solve for x
    x = 476,189,057,773.35/993,430.32
  6. Step 6: Final answer
    x = 479,338.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.