Home / 1,209,038.63-1,668,473.23-665,162.74

Finding the Fourth Proportional to 1,209,038.63, 1,668,473.23 and 665,162.74

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Solution

The fourth proportional to 1,209,038.63, 1,668,473.23 and 665,162.74 is: 917,924.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,038.63 : 1,668,473.23 = 665,162.74 : x
  2. Step 2: Convert to fraction form
    1,209,038.63/1,668,473.23 = 665,162.74/x
  3. Step 3: Cross multiply
    1,209,038.63x = 1,668,473.23 × 665,162.74
  4. Step 4: Simplify right side
    1,209,038.63x = 1,109,806,225,283.45
  5. Step 5: Solve for x
    x = 1,109,806,225,283.45/1,209,038.63
  6. Step 6: Final answer
    x = 917,924.54

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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.