Home / 870,988.37-1,306,482.03-272,000.86

Finding the Fourth Proportional to 870,988.37, 1,306,482.03 and 272,000.86

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Solution

The fourth proportional to 870,988.37, 1,306,482.03 and 272,000.86 is: 408,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,988.37 : 1,306,482.03 = 272,000.86 : x
  2. Step 2: Convert to fraction form
    870,988.37/1,306,482.03 = 272,000.86/x
  3. Step 3: Cross multiply
    870,988.37x = 1,306,482.03 × 272,000.86
  4. Step 4: Simplify right side
    870,988.37x = 355,364,232,468.34
  5. Step 5: Solve for x
    x = 355,364,232,468.34/870,988.37
  6. Step 6: Final answer
    x = 408,001.12

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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.