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Finding the Fourth Proportional to 674,554.40, 930,980.03 and 429,460.89

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Solution

The fourth proportional to 674,554.40, 930,980.03 and 429,460.89 is: 592,716.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,554.40 : 930,980.03 = 429,460.89 : x
  2. Step 2: Convert to fraction form
    674,554.40/930,980.03 = 429,460.89/x
  3. Step 3: Cross multiply
    674,554.40x = 930,980.03 × 429,460.89
  4. Step 4: Simplify right side
    674,554.40x = 399,819,509,033.27
  5. Step 5: Solve for x
    x = 399,819,509,033.27/674,554.40
  6. Step 6: Final answer
    x = 592,716.48

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1.5x scale

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.