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Finding the Fourth Proportional to 570,431.30, 786,948.09 and 343,950.98

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Solution

The fourth proportional to 570,431.30, 786,948.09 and 343,950.98 is: 474,503.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,431.30 : 786,948.09 = 343,950.98 : x
  2. Step 2: Convert to fraction form
    570,431.30/786,948.09 = 343,950.98/x
  3. Step 3: Cross multiply
    570,431.30x = 786,948.09 × 343,950.98
  4. Step 4: Simplify right side
    570,431.30x = 270,671,566,764.63
  5. Step 5: Solve for x
    x = 270,671,566,764.63/570,431.30
  6. Step 6: Final answer
    x = 474,503.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.