Home / 839,487.18-1,158,458.58-457,505.76

Finding the Fourth Proportional to 839,487.18, 1,158,458.58 and 457,505.76

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Solution

The fourth proportional to 839,487.18, 1,158,458.58 and 457,505.76 is: 631,339.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,487.18 : 1,158,458.58 = 457,505.76 : x
  2. Step 2: Convert to fraction form
    839,487.18/1,158,458.58 = 457,505.76/x
  3. Step 3: Cross multiply
    839,487.18x = 1,158,458.58 × 457,505.76
  4. Step 4: Simplify right side
    839,487.18x = 530,001,473,071.42
  5. Step 5: Solve for x
    x = 530,001,473,071.42/839,487.18
  6. Step 6: Final answer
    x = 631,339.57

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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.