Home / 1,248,008.40-1,872,012.60-406,645.20

Finding the Fourth Proportional to 1,248,008.40, 1,872,012.60 and 406,645.20

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Solution

The fourth proportional to 1,248,008.40, 1,872,012.60 and 406,645.20 is: 609,967.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,008.40 : 1,872,012.60 = 406,645.20 : x
  2. Step 2: Convert to fraction form
    1,248,008.40/1,872,012.60 = 406,645.20/x
  3. Step 3: Cross multiply
    1,248,008.40x = 1,872,012.60 × 406,645.20
  4. Step 4: Simplify right side
    1,248,008.40x = 761,244,938,129.52
  5. Step 5: Solve for x
    x = 761,244,938,129.52/1,248,008.40
  6. Step 6: Final answer
    x = 609,967.80

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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.