Home / 1,051,572.10-1,577,455.35-420,355.30

Finding the Fourth Proportional to 1,051,572.10, 1,577,455.35 and 420,355.30

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Solution

The fourth proportional to 1,051,572.10, 1,577,455.35 and 420,355.30 is: 630,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,572.10 : 1,577,455.35 = 420,355.30 : x
  2. Step 2: Convert to fraction form
    1,051,572.10/1,577,455.35 = 420,355.30/x
  3. Step 3: Cross multiply
    1,051,572.10x = 1,577,455.35 × 420,355.30
  4. Step 4: Simplify right side
    1,051,572.10x = 663,091,716,885.86
  5. Step 5: Solve for x
    x = 663,091,716,885.86/1,051,572.10
  6. Step 6: Final answer
    x = 630,571.80

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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.