Home / 971,316.90-1,456,586.55-339,905.70

Finding the Fourth Proportional to 971,316.90, 1,456,586.55 and 339,905.70

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Solution

The fourth proportional to 971,316.90, 1,456,586.55 and 339,905.70 is: 509,722.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,316.90 : 1,456,586.55 = 339,905.70 : x
  2. Step 2: Convert to fraction form
    971,316.90/1,456,586.55 = 339,905.70/x
  3. Step 3: Cross multiply
    971,316.90x = 1,456,586.55 × 339,905.70
  4. Step 4: Simplify right side
    971,316.90x = 495,102,070,888.34
  5. Step 5: Solve for x
    x = 495,102,070,888.34/971,316.90
  6. Step 6: Final answer
    x = 509,722.49

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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.