Home / 1,121,133.40-1,681,700.10-784,554.10

Finding the Fourth Proportional to 1,121,133.40, 1,681,700.10 and 784,554.10

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Solution

The fourth proportional to 1,121,133.40, 1,681,700.10 and 784,554.10 is: 1,176,831.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,133.40 : 1,681,700.10 = 784,554.10 : x
  2. Step 2: Convert to fraction form
    1,121,133.40/1,681,700.10 = 784,554.10/x
  3. Step 3: Cross multiply
    1,121,133.40x = 1,681,700.10 × 784,554.10
  4. Step 4: Simplify right side
    1,121,133.40x = 1,319,384,708,425.41
  5. Step 5: Solve for x
    x = 1,319,384,708,425.41/1,121,133.40
  6. Step 6: Final answer
    x = 1,176,831.15

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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.