Home / 872,437.77-1,309,038.98-423,503.37

Finding the Fourth Proportional to 872,437.77, 1,309,038.98 and 423,503.37

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Solution

The fourth proportional to 872,437.77, 1,309,038.98 and 423,503.37 is: 635,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,437.77 : 1,309,038.98 = 423,503.37 : x
  2. Step 2: Convert to fraction form
    872,437.77/1,309,038.98 = 423,503.37/x
  3. Step 3: Cross multiply
    872,437.77x = 1,309,038.98 × 423,503.37
  4. Step 4: Simplify right side
    872,437.77x = 554,382,417,373.85
  5. Step 5: Solve for x
    x = 554,382,417,373.85/872,437.77
  6. Step 6: Final answer
    x = 635,440.64

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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.