Home / 993,613.40-1,490,420.10-862,393.40

Finding the Fourth Proportional to 993,613.40, 1,490,420.10 and 862,393.40

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Solution

The fourth proportional to 993,613.40, 1,490,420.10 and 862,393.40 is: 1,293,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,613.40 : 1,490,420.10 = 862,393.40 : x
  2. Step 2: Convert to fraction form
    993,613.40/1,490,420.10 = 862,393.40/x
  3. Step 3: Cross multiply
    993,613.40x = 1,490,420.10 × 862,393.40
  4. Step 4: Simplify right side
    993,613.40x = 1,285,328,457,467.34
  5. Step 5: Solve for x
    x = 1,285,328,457,467.34/993,613.40
  6. Step 6: Final answer
    x = 1,293,590.10

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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.