Home / 389,219.80-583,829.70-282,931.60

Finding the Fourth Proportional to 389,219.80, 583,829.70 and 282,931.60

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Solution

The fourth proportional to 389,219.80, 583,829.70 and 282,931.60 is: 424,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,219.80 : 583,829.70 = 282,931.60 : x
  2. Step 2: Convert to fraction form
    389,219.80/583,829.70 = 282,931.60/x
  3. Step 3: Cross multiply
    389,219.80x = 583,829.70 × 282,931.60
  4. Step 4: Simplify right side
    389,219.80x = 165,183,871,148.52
  5. Step 5: Solve for x
    x = 165,183,871,148.52/389,219.80
  6. Step 6: Final answer
    x = 424,397.40

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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.