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Finding the Fourth Proportional to 570,392.84, 856,430.33 and 318,166.13

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Solution

The fourth proportional to 570,392.84, 856,430.33 and 318,166.13 is: 477,718.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,392.84 : 856,430.33 = 318,166.13 : x
  2. Step 2: Convert to fraction form
    570,392.84/856,430.33 = 318,166.13/x
  3. Step 3: Cross multiply
    570,392.84x = 856,430.33 × 318,166.13
  4. Step 4: Simplify right side
    570,392.84x = 272,487,117,837.74
  5. Step 5: Solve for x
    x = 272,487,117,837.74/570,392.84
  6. Step 6: Final answer
    x = 477,718.34

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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.