Home / 977,749.79-1,467,196.74-409,083.21

Finding the Fourth Proportional to 977,749.79, 1,467,196.74 and 409,083.21

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Solution

The fourth proportional to 977,749.79, 1,467,196.74 and 409,083.21 is: 613,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,749.79 : 1,467,196.74 = 409,083.21 : x
  2. Step 2: Convert to fraction form
    977,749.79/1,467,196.74 = 409,083.21/x
  3. Step 3: Cross multiply
    977,749.79x = 1,467,196.74 × 409,083.21
  4. Step 4: Simplify right side
    977,749.79x = 600,205,552,100.74
  5. Step 5: Solve for x
    x = 600,205,552,100.74/977,749.79
  6. Step 6: Final answer
    x = 613,864.16

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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.