Home / 830,381.16-1,145,929.50-467,809.36

Finding the Fourth Proportional to 830,381.16, 1,145,929.50 and 467,809.36

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Solution

The fourth proportional to 830,381.16, 1,145,929.50 and 467,809.36 is: 645,578.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,381.16 : 1,145,929.50 = 467,809.36 : x
  2. Step 2: Convert to fraction form
    830,381.16/1,145,929.50 = 467,809.36/x
  3. Step 3: Cross multiply
    830,381.16x = 1,145,929.50 × 467,809.36
  4. Step 4: Simplify right side
    830,381.16x = 536,076,546,000.12
  5. Step 5: Solve for x
    x = 536,076,546,000.12/830,381.16
  6. Step 6: Final answer
    x = 645,578.89

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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.