Home / 432,582.16-648,990.24-390,941.68

Finding the Fourth Proportional to 432,582.16, 648,990.24 and 390,941.68

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Solution

The fourth proportional to 432,582.16, 648,990.24 and 390,941.68 is: 586,518.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,582.16 : 648,990.24 = 390,941.68 : x
  2. Step 2: Convert to fraction form
    432,582.16/648,990.24 = 390,941.68/x
  3. Step 3: Cross multiply
    432,582.16x = 648,990.24 × 390,941.68
  4. Step 4: Simplify right side
    432,582.16x = 253,717,334,729.20
  5. Step 5: Solve for x
    x = 253,717,334,729.20/432,582.16
  6. Step 6: Final answer
    x = 586,518.26

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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.