Home / 690,417.52-1,035,279.99-402,322.48

Finding the Fourth Proportional to 690,417.52, 1,035,279.99 and 402,322.48

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Solution

The fourth proportional to 690,417.52, 1,035,279.99 and 402,322.48 is: 603,281.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,417.52 : 1,035,279.99 = 402,322.48 : x
  2. Step 2: Convert to fraction form
    690,417.52/1,035,279.99 = 402,322.48/x
  3. Step 3: Cross multiply
    690,417.52x = 1,035,279.99 × 402,322.48
  4. Step 4: Simplify right side
    690,417.52x = 416,516,413,071.18
  5. Step 5: Solve for x
    x = 416,516,413,071.18/690,417.52
  6. Step 6: Final answer
    x = 603,281.93

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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.