Home / 1,536,688.45-2,120,907.65-916,533.39

Finding the Fourth Proportional to 1,536,688.45, 2,120,907.65 and 916,533.39

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Solution

The fourth proportional to 1,536,688.45, 2,120,907.65 and 916,533.39 is: 1,264,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536,688.45 : 2,120,907.65 = 916,533.39 : x
  2. Step 2: Convert to fraction form
    1,536,688.45/2,120,907.65 = 916,533.39/x
  3. Step 3: Cross multiply
    1,536,688.45x = 2,120,907.65 × 916,533.39
  4. Step 4: Simplify right side
    1,536,688.45x = 1,943,882,680,622.77
  5. Step 5: Solve for x
    x = 1,943,882,680,622.77/1,536,688.45
  6. Step 6: Final answer
    x = 1,264,981.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.