Home / 975,666.42-1,463,499.63-643,164.66

Finding the Fourth Proportional to 975,666.42, 1,463,499.63 and 643,164.66

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Solution

The fourth proportional to 975,666.42, 1,463,499.63 and 643,164.66 is: 964,746.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,666.42 : 1,463,499.63 = 643,164.66 : x
  2. Step 2: Convert to fraction form
    975,666.42/1,463,499.63 = 643,164.66/x
  3. Step 3: Cross multiply
    975,666.42x = 1,463,499.63 × 643,164.66
  4. Step 4: Simplify right side
    975,666.42x = 941,271,241,939.08
  5. Step 5: Solve for x
    x = 941,271,241,939.08/975,666.42
  6. Step 6: Final answer
    x = 964,746.99

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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.