Home / 977,365.55-1,347,964.76-687,935.23

Finding the Fourth Proportional to 977,365.55, 1,347,964.76 and 687,935.23

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Solution

The fourth proportional to 977,365.55, 1,347,964.76 and 687,935.23 is: 948,787.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,365.55 : 1,347,964.76 = 687,935.23 : x
  2. Step 2: Convert to fraction form
    977,365.55/1,347,964.76 = 687,935.23/x
  3. Step 3: Cross multiply
    977,365.55x = 1,347,964.76 × 687,935.23
  4. Step 4: Simplify right side
    977,365.55x = 927,312,443,762.82
  5. Step 5: Solve for x
    x = 927,312,443,762.82/977,365.55
  6. Step 6: Final answer
    x = 948,787.74

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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.