Home / 1,478,443.40-2,218,701.90-947,256.20

Finding the Fourth Proportional to 1,478,443.40, 2,218,701.90 and 947,256.20

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Solution

The fourth proportional to 1,478,443.40, 2,218,701.90 and 947,256.20 is: 1,421,548.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,443.40 : 2,218,701.90 = 947,256.20 : x
  2. Step 2: Convert to fraction form
    1,478,443.40/2,218,701.90 = 947,256.20/x
  3. Step 3: Cross multiply
    1,478,443.40x = 2,218,701.90 × 947,256.20
  4. Step 4: Simplify right side
    1,478,443.40x = 2,101,679,130,726.78
  5. Step 5: Solve for x
    x = 2,101,679,130,726.78/1,478,443.40
  6. Step 6: Final answer
    x = 1,421,548.59

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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.