Home / 389,030.40-583,545.60-108,547.20

Finding the Fourth Proportional to 389,030.40, 583,545.60 and 108,547.20

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Solution

The fourth proportional to 389,030.40, 583,545.60 and 108,547.20 is: 162,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,030.40 : 583,545.60 = 108,547.20 : x
  2. Step 2: Convert to fraction form
    389,030.40/583,545.60 = 108,547.20/x
  3. Step 3: Cross multiply
    389,030.40x = 583,545.60 × 108,547.20
  4. Step 4: Simplify right side
    389,030.40x = 63,342,240,952.32
  5. Step 5: Solve for x
    x = 63,342,240,952.32/389,030.40
  6. Step 6: Final answer
    x = 162,820.80

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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.