Home / 429,338.40-592,078.98-312,946.08

Finding the Fourth Proportional to 429,338.40, 592,078.98 and 312,946.08

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Solution

The fourth proportional to 429,338.40, 592,078.98 and 312,946.08 is: 431,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,338.40 : 592,078.98 = 312,946.08 : x
  2. Step 2: Convert to fraction form
    429,338.40/592,078.98 = 312,946.08/x
  3. Step 3: Cross multiply
    429,338.40x = 592,078.98 × 312,946.08
  4. Step 4: Simplify right side
    429,338.40x = 185,288,795,841.40
  5. Step 5: Solve for x
    x = 185,288,795,841.40/429,338.40
  6. Step 6: Final answer
    x = 431,568.19

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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.