Home / 710,429.12-1,065,643.76-289,737.92

Finding the Fourth Proportional to 710,429.12, 1,065,643.76 and 289,737.92

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Solution

The fourth proportional to 710,429.12, 1,065,643.76 and 289,737.92 is: 434,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,429.12 : 1,065,643.76 = 289,737.92 : x
  2. Step 2: Convert to fraction form
    710,429.12/1,065,643.76 = 289,737.92/x
  3. Step 3: Cross multiply
    710,429.12x = 1,065,643.76 × 289,737.92
  4. Step 4: Simplify right side
    710,429.12x = 308,757,406,483.38
  5. Step 5: Solve for x
    x = 308,757,406,483.38/710,429.12
  6. Step 6: Final answer
    x = 434,606.91

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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.