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Finding the Fourth Proportional to 520,160.40, 779,074.20 and 520,160.40

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Solution

The fourth proportional to 520,160.40, 779,074.20 and 520,160.40 is: 779,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,160.40 : 779,074.20 = 520,160.40 : x
  2. Step 2: Convert to fraction form
    520,160.40/779,074.20 = 520,160.40/x
  3. Step 3: Cross multiply
    520,160.40x = 779,074.20 × 520,160.40
  4. Step 4: Simplify right side
    520,160.40x = 405,243,547,501.68
  5. Step 5: Solve for x
    x = 405,243,547,501.68/520,160.40
  6. Step 6: Final answer
    x = 779,074.20

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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.