Home / 1,376,020.60-2,064,030.90-429,268.30

Finding the Fourth Proportional to 1,376,020.60, 2,064,030.90 and 429,268.30

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Solution

The fourth proportional to 1,376,020.60, 2,064,030.90 and 429,268.30 is: 643,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,020.60 : 2,064,030.90 = 429,268.30 : x
  2. Step 2: Convert to fraction form
    1,376,020.60/2,064,030.90 = 429,268.30/x
  3. Step 3: Cross multiply
    1,376,020.60x = 2,064,030.90 × 429,268.30
  4. Step 4: Simplify right side
    1,376,020.60x = 886,023,035,590.47
  5. Step 5: Solve for x
    x = 886,023,035,590.47/1,376,020.60
  6. Step 6: Final answer
    x = 643,902.45

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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.