Home / 918,007.60-1,377,011.40-912,758.80

Finding the Fourth Proportional to 918,007.60, 1,377,011.40 and 912,758.80

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Solution

The fourth proportional to 918,007.60, 1,377,011.40 and 912,758.80 is: 1,369,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,007.60 : 1,377,011.40 = 912,758.80 : x
  2. Step 2: Convert to fraction form
    918,007.60/1,377,011.40 = 912,758.80/x
  3. Step 3: Cross multiply
    918,007.60x = 1,377,011.40 × 912,758.80
  4. Step 4: Simplify right side
    918,007.60x = 1,256,879,273,050.32
  5. Step 5: Solve for x
    x = 1,256,879,273,050.32/918,007.60
  6. Step 6: Final answer
    x = 1,369,138.20

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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.