Home / 977,421.61-1,465,672.33-378,663.13

Finding the Fourth Proportional to 977,421.61, 1,465,672.33 and 378,663.13

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Solution

The fourth proportional to 977,421.61, 1,465,672.33 and 378,663.13 is: 567,816.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,421.61 : 1,465,672.33 = 378,663.13 : x
  2. Step 2: Convert to fraction form
    977,421.61/1,465,672.33 = 378,663.13/x
  3. Step 3: Cross multiply
    977,421.61x = 1,465,672.33 × 378,663.13
  4. Step 4: Simplify right side
    977,421.61x = 554,996,072,032.19
  5. Step 5: Solve for x
    x = 554,996,072,032.19/977,421.61
  6. Step 6: Final answer
    x = 567,816.45

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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.