Home / 1,312,881.16-1,812,381.34-768,941.86

Finding the Fourth Proportional to 1,312,881.16, 1,812,381.34 and 768,941.86

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Solution

The fourth proportional to 1,312,881.16, 1,812,381.34 and 768,941.86 is: 1,061,494.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,881.16 : 1,812,381.34 = 768,941.86 : x
  2. Step 2: Convert to fraction form
    1,312,881.16/1,812,381.34 = 768,941.86/x
  3. Step 3: Cross multiply
    1,312,881.16x = 1,812,381.34 × 768,941.86
  4. Step 4: Simplify right side
    1,312,881.16x = 1,393,615,878,608.89
  5. Step 5: Solve for x
    x = 1,393,615,878,608.89/1,312,881.16
  6. Step 6: Final answer
    x = 1,061,494.31

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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.