Home / 912,901.65-1,369,477.01-380,298.03

Finding the Fourth Proportional to 912,901.65, 1,369,477.01 and 380,298.03

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Solution

The fourth proportional to 912,901.65, 1,369,477.01 and 380,298.03 is: 570,498.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,901.65 : 1,369,477.01 = 380,298.03 : x
  2. Step 2: Convert to fraction form
    912,901.65/1,369,477.01 = 380,298.03/x
  3. Step 3: Cross multiply
    912,901.65x = 1,369,477.01 × 380,298.03
  4. Step 4: Simplify right side
    912,901.65x = 520,809,409,033.29
  5. Step 5: Solve for x
    x = 520,809,409,033.29/912,901.65
  6. Step 6: Final answer
    x = 570,498.92

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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.