Home / 760,062.40-1,138,864.80-479,076.80

Finding the Fourth Proportional to 760,062.40, 1,138,864.80 and 479,076.80

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Solution

The fourth proportional to 760,062.40, 1,138,864.80 and 479,076.80 is: 717,840.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,062.40 : 1,138,864.80 = 479,076.80 : x
  2. Step 2: Convert to fraction form
    760,062.40/1,138,864.80 = 479,076.80/x
  3. Step 3: Cross multiply
    760,062.40x = 1,138,864.80 × 479,076.80
  4. Step 4: Simplify right side
    760,062.40x = 545,603,704,016.64
  5. Step 5: Solve for x
    x = 545,603,704,016.64/760,062.40
  6. Step 6: Final answer
    x = 717,840.67

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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.