Home / 929,225.79-1,282,351.32-521,357.13

Finding the Fourth Proportional to 929,225.79, 1,282,351.32 and 521,357.13

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Solution

The fourth proportional to 929,225.79, 1,282,351.32 and 521,357.13 is: 719,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,225.79 : 1,282,351.32 = 521,357.13 : x
  2. Step 2: Convert to fraction form
    929,225.79/1,282,351.32 = 521,357.13/x
  3. Step 3: Cross multiply
    929,225.79x = 1,282,351.32 × 521,357.13
  4. Step 4: Simplify right side
    929,225.79x = 668,562,997,435.16
  5. Step 5: Solve for x
    x = 668,562,997,435.16/929,225.79
  6. Step 6: Final answer
    x = 719,483.90

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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.