Home / 1,051,567.60-1,577,448.60-420,350.80

Finding the Fourth Proportional to 1,051,567.60, 1,577,448.60 and 420,350.80

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Solution

The fourth proportional to 1,051,567.60, 1,577,448.60 and 420,350.80 is: 630,565.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,567.60 : 1,577,448.60 = 420,350.80 : x
  2. Step 2: Convert to fraction form
    1,051,567.60/1,577,448.60 = 420,350.80/x
  3. Step 3: Cross multiply
    1,051,567.60x = 1,577,448.60 × 420,350.80
  4. Step 4: Simplify right side
    1,051,567.60x = 663,081,780,968.88
  5. Step 5: Solve for x
    x = 663,081,780,968.88/1,051,567.60
  6. Step 6: Final answer
    x = 630,565.05

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Double scale
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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.