Home / 1,130,444.10-1,695,666.15-420,325.20

Finding the Fourth Proportional to 1,130,444.10, 1,695,666.15 and 420,325.20

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Solution

The fourth proportional to 1,130,444.10, 1,695,666.15 and 420,325.20 is: 630,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,444.10 : 1,695,666.15 = 420,325.20 : x
  2. Step 2: Convert to fraction form
    1,130,444.10/1,695,666.15 = 420,325.20/x
  3. Step 3: Cross multiply
    1,130,444.10x = 1,695,666.15 × 420,325.20
  4. Step 4: Simplify right side
    1,130,444.10x = 712,731,213,631.98
  5. Step 5: Solve for x
    x = 712,731,213,631.98/1,130,444.10
  6. Step 6: Final answer
    x = 630,487.80

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Double scale
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Similar ratio
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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.