Home / 977,035.92-1,347,636.36-687,262.16

Finding the Fourth Proportional to 977,035.92, 1,347,636.36 and 687,262.16

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Solution

The fourth proportional to 977,035.92, 1,347,636.36 and 687,262.16 is: 947,948.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,035.92 : 1,347,636.36 = 687,262.16 : x
  2. Step 2: Convert to fraction form
    977,035.92/1,347,636.36 = 687,262.16/x
  3. Step 3: Cross multiply
    977,035.92x = 1,347,636.36 × 687,262.16
  4. Step 4: Simplify right side
    977,035.92x = 926,179,475,668.14
  5. Step 5: Solve for x
    x = 926,179,475,668.14/977,035.92
  6. Step 6: Final answer
    x = 947,948.23

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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.