Home / 717,214.05-989,762.04-394,931.52

Finding the Fourth Proportional to 717,214.05, 989,762.04 and 394,931.52

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Solution

The fourth proportional to 717,214.05, 989,762.04 and 394,931.52 is: 545,009.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,214.05 : 989,762.04 = 394,931.52 : x
  2. Step 2: Convert to fraction form
    717,214.05/989,762.04 = 394,931.52/x
  3. Step 3: Cross multiply
    717,214.05x = 989,762.04 × 394,931.52
  4. Step 4: Simplify right side
    717,214.05x = 390,888,226,895.50
  5. Step 5: Solve for x
    x = 390,888,226,895.50/717,214.05
  6. Step 6: Final answer
    x = 545,009.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.