Home / 710,732.40-1,065,709.80-289,532.40

Finding the Fourth Proportional to 710,732.40, 1,065,709.80 and 289,532.40

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Solution

The fourth proportional to 710,732.40, 1,065,709.80 and 289,532.40 is: 434,140.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,732.40 : 1,065,709.80 = 289,532.40 : x
  2. Step 2: Convert to fraction form
    710,732.40/1,065,709.80 = 289,532.40/x
  3. Step 3: Cross multiply
    710,732.40x = 1,065,709.80 × 289,532.40
  4. Step 4: Simplify right side
    710,732.40x = 308,557,516,097.52
  5. Step 5: Solve for x
    x = 308,557,516,097.52/710,732.40
  6. Step 6: Final answer
    x = 434,140.21

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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.