Home / 780,864.14-1,077,374.03-490,507.08

Finding the Fourth Proportional to 780,864.14, 1,077,374.03 and 490,507.08

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Solution

The fourth proportional to 780,864.14, 1,077,374.03 and 490,507.08 is: 676,762.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,864.14 : 1,077,374.03 = 490,507.08 : x
  2. Step 2: Convert to fraction form
    780,864.14/1,077,374.03 = 490,507.08/x
  3. Step 3: Cross multiply
    780,864.14x = 1,077,374.03 × 490,507.08
  4. Step 4: Simplify right side
    780,864.14x = 528,459,587,070.60
  5. Step 5: Solve for x
    x = 528,459,587,070.60/780,864.14
  6. Step 6: Final answer
    x = 676,762.53

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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.