Home / 1,087,064.70-1,630,597.05-768,200.10

Finding the Fourth Proportional to 1,087,064.70, 1,630,597.05 and 768,200.10

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Solution

The fourth proportional to 1,087,064.70, 1,630,597.05 and 768,200.10 is: 1,152,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,064.70 : 1,630,597.05 = 768,200.10 : x
  2. Step 2: Convert to fraction form
    1,087,064.70/1,630,597.05 = 768,200.10/x
  3. Step 3: Cross multiply
    1,087,064.70x = 1,630,597.05 × 768,200.10
  4. Step 4: Simplify right side
    1,087,064.70x = 1,252,624,816,869.71
  5. Step 5: Solve for x
    x = 1,252,624,816,869.71/1,087,064.70
  6. Step 6: Final answer
    x = 1,152,300.15

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Double scale
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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.