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Finding the Fourth Proportional to 839,454, 1,158,412.71 and 457,472.58

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Solution

The fourth proportional to 839,454, 1,158,412.71 and 457,472.58 is: 631,293.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,454 : 1,158,412.71 = 457,472.58 : x
  2. Step 2: Convert to fraction form
    839,454/1,158,412.71 = 457,472.58/x
  3. Step 3: Cross multiply
    839,454x = 1,158,412.71 × 457,472.58
  4. Step 4: Simplify right side
    839,454x = 529,942,051,148.49
  5. Step 5: Solve for x
    x = 529,942,051,148.49/839,454
  6. Step 6: Final answer
    x = 631,293.74

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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.