Home / 1,036,148.47-1,555,108.40-405,505.15

Finding the Fourth Proportional to 1,036,148.47, 1,555,108.40 and 405,505.15

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Solution

The fourth proportional to 1,036,148.47, 1,555,108.40 and 405,505.15 is: 608,604.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,148.47 : 1,555,108.40 = 405,505.15 : x
  2. Step 2: Convert to fraction form
    1,036,148.47/1,555,108.40 = 405,505.15/x
  3. Step 3: Cross multiply
    1,036,148.47x = 1,555,108.40 × 405,505.15
  4. Step 4: Simplify right side
    1,036,148.47x = 630,604,465,008.26
  5. Step 5: Solve for x
    x = 630,604,465,008.26/1,036,148.47
  6. Step 6: Final answer
    x = 608,604.35

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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.