Home / 710,930.40-1,066,006.80-289,730.40

Finding the Fourth Proportional to 710,930.40, 1,066,006.80 and 289,730.40

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Solution

The fourth proportional to 710,930.40, 1,066,006.80 and 289,730.40 is: 434,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,930.40 : 1,066,006.80 = 289,730.40 : x
  2. Step 2: Convert to fraction form
    710,930.40/1,066,006.80 = 289,730.40/x
  3. Step 3: Cross multiply
    710,930.40x = 1,066,006.80 × 289,730.40
  4. Step 4: Simplify right side
    710,930.40x = 308,854,576,566.72
  5. Step 5: Solve for x
    x = 308,854,576,566.72/710,930.40
  6. Step 6: Final answer
    x = 434,437.15

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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.