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Finding the Fourth Proportional to 710,530.40, 981,186.72 and 456,324.42

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Solution

The fourth proportional to 710,530.40, 981,186.72 and 456,324.42 is: 630,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,530.40 : 981,186.72 = 456,324.42 : x
  2. Step 2: Convert to fraction form
    710,530.40/981,186.72 = 456,324.42/x
  3. Step 3: Cross multiply
    710,530.40x = 981,186.72 × 456,324.42
  4. Step 4: Simplify right side
    710,530.40x = 447,739,460,915.70
  5. Step 5: Solve for x
    x = 447,739,460,915.70/710,530.40
  6. Step 6: Final answer
    x = 630,148.21

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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.