Home / 1,376,010.60-2,064,015.90-429,258.30

Finding the Fourth Proportional to 1,376,010.60, 2,064,015.90 and 429,258.30

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Solution

The fourth proportional to 1,376,010.60, 2,064,015.90 and 429,258.30 is: 643,887.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,010.60 : 2,064,015.90 = 429,258.30 : x
  2. Step 2: Convert to fraction form
    1,376,010.60/2,064,015.90 = 429,258.30/x
  3. Step 3: Cross multiply
    1,376,010.60x = 2,064,015.90 × 429,258.30
  4. Step 4: Simplify right side
    1,376,010.60x = 885,995,956,406.97
  5. Step 5: Solve for x
    x = 885,995,956,406.97/1,376,010.60
  6. Step 6: Final answer
    x = 643,887.45

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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.