Home / 1,186,975.45-1,780,465.40-288,417.94

Finding the Fourth Proportional to 1,186,975.45, 1,780,465.40 and 288,417.94

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Solution

The fourth proportional to 1,186,975.45, 1,780,465.40 and 288,417.94 is: 432,627.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,975.45 : 1,780,465.40 = 288,417.94 : x
  2. Step 2: Convert to fraction form
    1,186,975.45/1,780,465.40 = 288,417.94/x
  3. Step 3: Cross multiply
    1,186,975.45x = 1,780,465.40 × 288,417.94
  4. Step 4: Simplify right side
    1,186,975.45x = 513,518,162,909.28
  5. Step 5: Solve for x
    x = 513,518,162,909.28/1,186,975.45
  6. Step 6: Final answer
    x = 432,627.45

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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.