Home / 390,825.48-586,050.95-190,911.81

Finding the Fourth Proportional to 390,825.48, 586,050.95 and 190,911.81

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Solution

The fourth proportional to 390,825.48, 586,050.95 and 190,911.81 is: 286,276.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,825.48 : 586,050.95 = 190,911.81 : x
  2. Step 2: Convert to fraction form
    390,825.48/586,050.95 = 190,911.81/x
  3. Step 3: Cross multiply
    390,825.48x = 586,050.95 × 190,911.81
  4. Step 4: Simplify right side
    390,825.48x = 111,884,045,896.31
  5. Step 5: Solve for x
    x = 111,884,045,896.31/390,825.48
  6. Step 6: Final answer
    x = 286,276.24

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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.