Home / 507,749.42-761,622.72-128,669.06

Finding the Fourth Proportional to 507,749.42, 761,622.72 and 128,669.06

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Solution

The fourth proportional to 507,749.42, 761,622.72 and 128,669.06 is: 193,003.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,749.42 : 761,622.72 = 128,669.06 : x
  2. Step 2: Convert to fraction form
    507,749.42/761,622.72 = 128,669.06/x
  3. Step 3: Cross multiply
    507,749.42x = 761,622.72 × 128,669.06
  4. Step 4: Simplify right side
    507,749.42x = 97,997,275,648.93
  5. Step 5: Solve for x
    x = 97,997,275,648.93/507,749.42
  6. Step 6: Final answer
    x = 193,003.23

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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.