Home / 1,148,855.20-1,723,359.60-390,685.60

Finding the Fourth Proportional to 1,148,855.20, 1,723,359.60 and 390,685.60

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Solution

The fourth proportional to 1,148,855.20, 1,723,359.60 and 390,685.60 is: 586,054.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,855.20 : 1,723,359.60 = 390,685.60 : x
  2. Step 2: Convert to fraction form
    1,148,855.20/1,723,359.60 = 390,685.60/x
  3. Step 3: Cross multiply
    1,148,855.20x = 1,723,359.60 × 390,685.60
  4. Step 4: Simplify right side
    1,148,855.20x = 673,291,779,341.76
  5. Step 5: Solve for x
    x = 673,291,779,341.76/1,148,855.20
  6. Step 6: Final answer
    x = 586,054.52

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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.