Home / 999,642.60-1,379,543.40-569,918.16

Finding the Fourth Proportional to 999,642.60, 1,379,543.40 and 569,918.16

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Solution

The fourth proportional to 999,642.60, 1,379,543.40 and 569,918.16 is: 786,507.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,642.60 : 1,379,543.40 = 569,918.16 : x
  2. Step 2: Convert to fraction form
    999,642.60/1,379,543.40 = 569,918.16/x
  3. Step 3: Cross multiply
    999,642.60x = 1,379,543.40 × 569,918.16
  4. Step 4: Simplify right side
    999,642.60x = 786,226,836,168.14
  5. Step 5: Solve for x
    x = 786,226,836,168.14/999,642.60
  6. Step 6: Final answer
    x = 786,507.93

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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.