Home / 1,315,590.02-1,973,385.10-318,318.02

Finding the Fourth Proportional to 1,315,590.02, 1,973,385.10 and 318,318.02

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Solution

The fourth proportional to 1,315,590.02, 1,973,385.10 and 318,318.02 is: 477,477.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,590.02 : 1,973,385.10 = 318,318.02 : x
  2. Step 2: Convert to fraction form
    1,315,590.02/1,973,385.10 = 318,318.02/x
  3. Step 3: Cross multiply
    1,315,590.02x = 1,973,385.10 × 318,318.02
  4. Step 4: Simplify right side
    1,315,590.02x = 628,164,037,729.50
  5. Step 5: Solve for x
    x = 628,164,037,729.50/1,315,590.02
  6. Step 6: Final answer
    x = 477,477.05

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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.