Home / 690,405.04-1,035,261.22-402,310

Finding the Fourth Proportional to 690,405.04, 1,035,261.22 and 402,310

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Solution

The fourth proportional to 690,405.04, 1,035,261.22 and 402,310 is: 603,263.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,405.04 : 1,035,261.22 = 402,310 : x
  2. Step 2: Convert to fraction form
    690,405.04/1,035,261.22 = 402,310/x
  3. Step 3: Cross multiply
    690,405.04x = 1,035,261.22 × 402,310
  4. Step 4: Simplify right side
    690,405.04x = 416,495,941,418.20
  5. Step 5: Solve for x
    x = 416,495,941,418.20/690,405.04
  6. Step 6: Final answer
    x = 603,263.18

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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.