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Finding the Fourth Proportional to 847,301, 1,169,379.06 and 489,605

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Solution

The fourth proportional to 847,301, 1,169,379.06 and 489,605 is: 675,714.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,301 : 1,169,379.06 = 489,605 : x
  2. Step 2: Convert to fraction form
    847,301/1,169,379.06 = 489,605/x
  3. Step 3: Cross multiply
    847,301x = 1,169,379.06 × 489,605
  4. Step 4: Simplify right side
    847,301x = 572,533,834,671.30
  5. Step 5: Solve for x
    x = 572,533,834,671.30/847,301
  6. Step 6: Final answer
    x = 675,714.81

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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.