Home / 389,890.84-583,505.58-326,782.22

Finding the Fourth Proportional to 389,890.84, 583,505.58 and 326,782.22

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Solution

The fourth proportional to 389,890.84, 583,505.58 and 326,782.22 is: 489,058.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,890.84 : 583,505.58 = 326,782.22 : x
  2. Step 2: Convert to fraction form
    389,890.84/583,505.58 = 326,782.22/x
  3. Step 3: Cross multiply
    389,890.84x = 583,505.58 × 326,782.22
  4. Step 4: Simplify right side
    389,890.84x = 190,679,248,814.79
  5. Step 5: Solve for x
    x = 190,679,248,814.79/389,890.84
  6. Step 6: Final answer
    x = 489,058.04

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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.