Home / 850,520.96-1,276,572-430,098.56

Finding the Fourth Proportional to 850,520.96, 1,276,572 and 430,098.56

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Solution

The fourth proportional to 850,520.96, 1,276,572 and 430,098.56 is: 645,547.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,520.96 : 1,276,572 = 430,098.56 : x
  2. Step 2: Convert to fraction form
    850,520.96/1,276,572 = 430,098.56/x
  3. Step 3: Cross multiply
    850,520.96x = 1,276,572 × 430,098.56
  4. Step 4: Simplify right side
    850,520.96x = 549,051,778,936.32
  5. Step 5: Solve for x
    x = 549,051,778,936.32/850,520.96
  6. Step 6: Final answer
    x = 645,547.62

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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.