Home / 989,038.85-1,364,903.33-559,310.36

Finding the Fourth Proportional to 989,038.85, 1,364,903.33 and 559,310.36

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Solution

The fourth proportional to 989,038.85, 1,364,903.33 and 559,310.36 is: 771,865.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,038.85 : 1,364,903.33 = 559,310.36 : x
  2. Step 2: Convert to fraction form
    989,038.85/1,364,903.33 = 559,310.36/x
  3. Step 3: Cross multiply
    989,038.85x = 1,364,903.33 × 559,310.36
  4. Step 4: Simplify right side
    989,038.85x = 763,404,563,246.43
  5. Step 5: Solve for x
    x = 763,404,563,246.43/989,038.85
  6. Step 6: Final answer
    x = 771,865.10

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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.