Home / 897,487.40-1,345,079.28-391,911.32

Finding the Fourth Proportional to 897,487.40, 1,345,079.28 and 391,911.32

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Solution

The fourth proportional to 897,487.40, 1,345,079.28 and 391,911.32 is: 587,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,487.40 : 1,345,079.28 = 391,911.32 : x
  2. Step 2: Convert to fraction form
    897,487.40/1,345,079.28 = 391,911.32/x
  3. Step 3: Cross multiply
    897,487.40x = 1,345,079.28 × 391,911.32
  4. Step 4: Simplify right side
    897,487.40x = 527,151,796,129.45
  5. Step 5: Solve for x
    x = 527,151,796,129.45/897,487.40
  6. Step 6: Final answer
    x = 587,364.01

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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.