Home / 390,869.48-586,373.34-124,688.36

Finding the Fourth Proportional to 390,869.48, 586,373.34 and 124,688.36

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Solution

The fourth proportional to 390,869.48, 586,373.34 and 124,688.36 is: 187,054.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,869.48 : 586,373.34 = 124,688.36 : x
  2. Step 2: Convert to fraction form
    390,869.48/586,373.34 = 124,688.36/x
  3. Step 3: Cross multiply
    390,869.48x = 586,373.34 × 124,688.36
  4. Step 4: Simplify right side
    390,869.48x = 73,113,930,112.32
  5. Step 5: Solve for x
    x = 73,113,930,112.32/390,869.48
  6. Step 6: Final answer
    x = 187,054.59

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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.