Home / 1,066,810.20-1,600,445.70-318,931.80

Finding the Fourth Proportional to 1,066,810.20, 1,600,445.70 and 318,931.80

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Solution

The fourth proportional to 1,066,810.20, 1,600,445.70 and 318,931.80 is: 478,466.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066,810.20 : 1,600,445.70 = 318,931.80 : x
  2. Step 2: Convert to fraction form
    1,066,810.20/1,600,445.70 = 318,931.80/x
  3. Step 3: Cross multiply
    1,066,810.20x = 1,600,445.70 × 318,931.80
  4. Step 4: Simplify right side
    1,066,810.20x = 510,433,027,903.26
  5. Step 5: Solve for x
    x = 510,433,027,903.26/1,066,810.20
  6. Step 6: Final answer
    x = 478,466.58

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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.