Home / 839,480.77-1,157,948.09-686,740.69

Finding the Fourth Proportional to 839,480.77, 1,157,948.09 and 686,740.69

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Solution

The fourth proportional to 839,480.77, 1,157,948.09 and 686,740.69 is: 947,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,480.77 : 1,157,948.09 = 686,740.69 : x
  2. Step 2: Convert to fraction form
    839,480.77/1,157,948.09 = 686,740.69/x
  3. Step 3: Cross multiply
    839,480.77x = 1,157,948.09 × 686,740.69
  4. Step 4: Simplify right side
    839,480.77x = 795,210,066,877.08
  5. Step 5: Solve for x
    x = 795,210,066,877.08/839,480.77
  6. Step 6: Final answer
    x = 947,264.18

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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.