Home / 1,087,011.20-1,630,516.80-709,097.60

Finding the Fourth Proportional to 1,087,011.20, 1,630,516.80 and 709,097.60

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Solution

The fourth proportional to 1,087,011.20, 1,630,516.80 and 709,097.60 is: 1,063,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,011.20 : 1,630,516.80 = 709,097.60 : x
  2. Step 2: Convert to fraction form
    1,087,011.20/1,630,516.80 = 709,097.60/x
  3. Step 3: Cross multiply
    1,087,011.20x = 1,630,516.80 × 709,097.60
  4. Step 4: Simplify right side
    1,087,011.20x = 1,156,195,549,639.68
  5. Step 5: Solve for x
    x = 1,156,195,549,639.68/1,087,011.20
  6. Step 6: Final answer
    x = 1,063,646.40

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1.5x scale

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.