Home / 389,030.40-583,545.60-202,406.40

Finding the Fourth Proportional to 389,030.40, 583,545.60 and 202,406.40

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Solution

The fourth proportional to 389,030.40, 583,545.60 and 202,406.40 is: 303,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,030.40 : 583,545.60 = 202,406.40 : x
  2. Step 2: Convert to fraction form
    389,030.40/583,545.60 = 202,406.40/x
  3. Step 3: Cross multiply
    389,030.40x = 583,545.60 × 202,406.40
  4. Step 4: Simplify right side
    389,030.40x = 118,113,364,131.84
  5. Step 5: Solve for x
    x = 118,113,364,131.84/389,030.40
  6. Step 6: Final answer
    x = 303,609.60

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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.