Home / 760,653.92-1,139,299.05-520,197.96

Finding the Fourth Proportional to 760,653.92, 1,139,299.05 and 520,197.96

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Solution

The fourth proportional to 760,653.92, 1,139,299.05 and 520,197.96 is: 779,146.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,653.92 : 1,139,299.05 = 520,197.96 : x
  2. Step 2: Convert to fraction form
    760,653.92/1,139,299.05 = 520,197.96/x
  3. Step 3: Cross multiply
    760,653.92x = 1,139,299.05 × 520,197.96
  4. Step 4: Simplify right side
    760,653.92x = 592,661,047,863.05
  5. Step 5: Solve for x
    x = 592,661,047,863.05/760,653.92
  6. Step 6: Final answer
    x = 779,146.77

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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.