Home / 985,909.40-1,478,864.10-649,330.10

Finding the Fourth Proportional to 985,909.40, 1,478,864.10 and 649,330.10

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Solution

The fourth proportional to 985,909.40, 1,478,864.10 and 649,330.10 is: 973,995.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,909.40 : 1,478,864.10 = 649,330.10 : x
  2. Step 2: Convert to fraction form
    985,909.40/1,478,864.10 = 649,330.10/x
  3. Step 3: Cross multiply
    985,909.40x = 1,478,864.10 × 649,330.10
  4. Step 4: Simplify right side
    985,909.40x = 960,270,973,939.41
  5. Step 5: Solve for x
    x = 960,270,973,939.41/985,909.40
  6. Step 6: Final answer
    x = 973,995.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.