Home / 427,792.04-642,318.86-238,622.00

Finding the Fourth Proportional to 427,792.04, 642,318.86 and 238,622.00

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Solution

The fourth proportional to 427,792.04, 642,318.86 and 238,622.00 is: 358,284.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,792.04 : 642,318.86 = 238,622.00 : x
  2. Step 2: Convert to fraction form
    427,792.04/642,318.86 = 238,622.00/x
  3. Step 3: Cross multiply
    427,792.04x = 642,318.86 × 238,622.00
  4. Step 4: Simplify right side
    427,792.04x = 153,271,411,423.61
  5. Step 5: Solve for x
    x = 153,271,411,423.61/427,792.04
  6. Step 6: Final answer
    x = 358,284.86

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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.