Home / 779,381.10-1,169,482.32-553,138.38

Finding the Fourth Proportional to 779,381.10, 1,169,482.32 and 553,138.38

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Solution

The fourth proportional to 779,381.10, 1,169,482.32 and 553,138.38 is: 829,999.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,381.10 : 1,169,482.32 = 553,138.38 : x
  2. Step 2: Convert to fraction form
    779,381.10/1,169,482.32 = 553,138.38/x
  3. Step 3: Cross multiply
    779,381.10x = 1,169,482.32 × 553,138.38
  4. Step 4: Simplify right side
    779,381.10x = 646,885,555,923.44
  5. Step 5: Solve for x
    x = 646,885,555,923.44/779,381.10
  6. Step 6: Final answer
    x = 829,999.03

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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.