Home / 839,307.47-1,158,208.10-476,730.21

Finding the Fourth Proportional to 839,307.47, 1,158,208.10 and 476,730.21

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Solution

The fourth proportional to 839,307.47, 1,158,208.10 and 476,730.21 is: 657,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,307.47 : 1,158,208.10 = 476,730.21 : x
  2. Step 2: Convert to fraction form
    839,307.47/1,158,208.10 = 476,730.21/x
  3. Step 3: Cross multiply
    839,307.47x = 1,158,208.10 × 476,730.21
  4. Step 4: Simplify right side
    839,307.47x = 552,152,790,736.70
  5. Step 5: Solve for x
    x = 552,152,790,736.70/839,307.47
  6. Step 6: Final answer
    x = 657,867.12

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Double scale
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1.5x scale

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.