Home / 870,483.48-1,306,094.30-421,538.86

Finding the Fourth Proportional to 870,483.48, 1,306,094.30 and 421,538.86

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Solution

The fourth proportional to 870,483.48, 1,306,094.30 and 421,538.86 is: 632,487.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,483.48 : 1,306,094.30 = 421,538.86 : x
  2. Step 2: Convert to fraction form
    870,483.48/1,306,094.30 = 421,538.86/x
  3. Step 3: Cross multiply
    870,483.48x = 1,306,094.30 × 421,538.86
  4. Step 4: Simplify right side
    870,483.48x = 550,569,493,636.33
  5. Step 5: Solve for x
    x = 550,569,493,636.33/870,483.48
  6. Step 6: Final answer
    x = 632,487.01

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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.