Home / 853,487.04-1,280,574.82-379,848.46

Finding the Fourth Proportional to 853,487.04, 1,280,574.82 and 379,848.46

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Solution

The fourth proportional to 853,487.04, 1,280,574.82 and 379,848.46 is: 569,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,487.04 : 1,280,574.82 = 379,848.46 : x
  2. Step 2: Convert to fraction form
    853,487.04/1,280,574.82 = 379,848.46/x
  3. Step 3: Cross multiply
    853,487.04x = 1,280,574.82 × 379,848.46
  4. Step 4: Simplify right side
    853,487.04x = 486,424,373,291.78
  5. Step 5: Solve for x
    x = 486,424,373,291.78/853,487.04
  6. Step 6: Final answer
    x = 569,925.90

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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.