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Finding the Fourth Proportional to 963,063.32, 1,329,248.58 and 640,787

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Solution

The fourth proportional to 963,063.32, 1,329,248.58 and 640,787 is: 884,433.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,063.32 : 1,329,248.58 = 640,787 : x
  2. Step 2: Convert to fraction form
    963,063.32/1,329,248.58 = 640,787/x
  3. Step 3: Cross multiply
    963,063.32x = 1,329,248.58 × 640,787
  4. Step 4: Simplify right side
    963,063.32x = 851,765,209,832.46
  5. Step 5: Solve for x
    x = 851,765,209,832.46/963,063.32
  6. Step 6: Final answer
    x = 884,433.24

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1.5x scale

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.