Home / 839,472.51-1,158,330.22-471,900.68

Finding the Fourth Proportional to 839,472.51, 1,158,330.22 and 471,900.68

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Solution

The fourth proportional to 839,472.51, 1,158,330.22 and 471,900.68 is: 651,143.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,472.51 : 1,158,330.22 = 471,900.68 : x
  2. Step 2: Convert to fraction form
    839,472.51/1,158,330.22 = 471,900.68/x
  3. Step 3: Cross multiply
    839,472.51x = 1,158,330.22 × 471,900.68
  4. Step 4: Simplify right side
    839,472.51x = 546,616,818,482.55
  5. Step 5: Solve for x
    x = 546,616,818,482.55/839,472.51
  6. Step 6: Final answer
    x = 651,143.21

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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.