Home / 993,409.03-1,490,113.70-319,475.57

Finding the Fourth Proportional to 993,409.03, 1,490,113.70 and 319,475.57

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Solution

The fourth proportional to 993,409.03, 1,490,113.70 and 319,475.57 is: 479,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,409.03 : 1,490,113.70 = 319,475.57 : x
  2. Step 2: Convert to fraction form
    993,409.03/1,490,113.70 = 319,475.57/x
  3. Step 3: Cross multiply
    993,409.03x = 1,490,113.70 × 319,475.57
  4. Step 4: Simplify right side
    993,409.03x = 476,054,915,822.40
  5. Step 5: Solve for x
    x = 476,054,915,822.40/993,409.03
  6. Step 6: Final answer
    x = 479,213.40

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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.