Home / 876,421.50-1,209,461.76-474,013.50

Finding the Fourth Proportional to 876,421.50, 1,209,461.76 and 474,013.50

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Solution

The fourth proportional to 876,421.50, 1,209,461.76 and 474,013.50 is: 654,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,421.50 : 1,209,461.76 = 474,013.50 : x
  2. Step 2: Convert to fraction form
    876,421.50/1,209,461.76 = 474,013.50/x
  3. Step 3: Cross multiply
    876,421.50x = 1,209,461.76 × 474,013.50
  4. Step 4: Simplify right side
    876,421.50x = 573,301,201,973.76
  5. Step 5: Solve for x
    x = 573,301,201,973.76/876,421.50
  6. Step 6: Final answer
    x = 654,138.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.