Home / 1,210,218.40-1,815,133.20-368,574.40

Finding the Fourth Proportional to 1,210,218.40, 1,815,133.20 and 368,574.40

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Solution

The fourth proportional to 1,210,218.40, 1,815,133.20 and 368,574.40 is: 552,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,218.40 : 1,815,133.20 = 368,574.40 : x
  2. Step 2: Convert to fraction form
    1,210,218.40/1,815,133.20 = 368,574.40/x
  3. Step 3: Cross multiply
    1,210,218.40x = 1,815,133.20 × 368,574.40
  4. Step 4: Simplify right side
    1,210,218.40x = 669,011,630,110.08
  5. Step 5: Solve for x
    x = 669,011,630,110.08/1,210,218.40
  6. Step 6: Final answer
    x = 552,802.40

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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.