Home / 985,693.79-1,477,905.04-386,715.50

Finding the Fourth Proportional to 985,693.79, 1,477,905.04 and 386,715.50

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Solution

The fourth proportional to 985,693.79, 1,477,905.04 and 386,715.50 is: 579,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,693.79 : 1,477,905.04 = 386,715.50 : x
  2. Step 2: Convert to fraction form
    985,693.79/1,477,905.04 = 386,715.50/x
  3. Step 3: Cross multiply
    985,693.79x = 1,477,905.04 × 386,715.50
  4. Step 4: Simplify right side
    985,693.79x = 571,528,785,132.13
  5. Step 5: Solve for x
    x = 571,528,785,132.13/985,693.79
  6. Step 6: Final answer
    x = 579,823.87

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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.