Home / 1,152,594.32-1,590,433.45-643,318.16

Finding the Fourth Proportional to 1,152,594.32, 1,590,433.45 and 643,318.16

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Solution

The fourth proportional to 1,152,594.32, 1,590,433.45 and 643,318.16 is: 887,697.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,594.32 : 1,590,433.45 = 643,318.16 : x
  2. Step 2: Convert to fraction form
    1,152,594.32/1,590,433.45 = 643,318.16/x
  3. Step 3: Cross multiply
    1,152,594.32x = 1,590,433.45 × 643,318.16
  4. Step 4: Simplify right side
    1,152,594.32x = 1,023,154,711,095.99
  5. Step 5: Solve for x
    x = 1,023,154,711,095.99/1,152,594.32
  6. Step 6: Final answer
    x = 887,697.17

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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.