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Finding the Fourth Proportional to 520,525.50, 776,412.72 and 472,688.52

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Solution

The fourth proportional to 520,525.50, 776,412.72 and 472,688.52 is: 705,059.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,525.50 : 776,412.72 = 472,688.52 : x
  2. Step 2: Convert to fraction form
    520,525.50/776,412.72 = 472,688.52/x
  3. Step 3: Cross multiply
    520,525.50x = 776,412.72 × 472,688.52
  4. Step 4: Simplify right side
    520,525.50x = 367,001,379,525.97
  5. Step 5: Solve for x
    x = 367,001,379,525.97/520,525.50
  6. Step 6: Final answer
    x = 705,059.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.