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Finding the Fourth Proportional to 570,779.49, 787,681.49 and 344,381.25

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Solution

The fourth proportional to 570,779.49, 787,681.49 and 344,381.25 is: 475,249.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,779.49 : 787,681.49 = 344,381.25 : x
  2. Step 2: Convert to fraction form
    570,779.49/787,681.49 = 344,381.25/x
  3. Step 3: Cross multiply
    570,779.49x = 787,681.49 × 344,381.25
  4. Step 4: Simplify right side
    570,779.49x = 271,262,734,406.16
  5. Step 5: Solve for x
    x = 271,262,734,406.16/570,779.49
  6. Step 6: Final answer
    x = 475,249.62

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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.