Home / 692,435.52-955,605.60-390,623.04

Finding the Fourth Proportional to 692,435.52, 955,605.60 and 390,623.04

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Solution

The fourth proportional to 692,435.52, 955,605.60 and 390,623.04 is: 539,084.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,435.52 : 955,605.60 = 390,623.04 : x
  2. Step 2: Convert to fraction form
    692,435.52/955,605.60 = 390,623.04/x
  3. Step 3: Cross multiply
    692,435.52x = 955,605.60 × 390,623.04
  4. Step 4: Simplify right side
    692,435.52x = 373,281,564,513.02
  5. Step 5: Solve for x
    x = 373,281,564,513.02/692,435.52
  6. Step 6: Final answer
    x = 539,084.95

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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.