Home / 760,834.43-1,139,569.48-520,378.43

Finding the Fourth Proportional to 760,834.43, 1,139,569.48 and 520,378.43

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Solution

The fourth proportional to 760,834.43, 1,139,569.48 and 520,378.43 is: 779,417.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,834.43 : 1,139,569.48 = 520,378.43 : x
  2. Step 2: Convert to fraction form
    760,834.43/1,139,569.48 = 520,378.43/x
  3. Step 3: Cross multiply
    760,834.43x = 1,139,569.48 × 520,378.43
  4. Step 4: Simplify right side
    760,834.43x = 593,007,376,878.32
  5. Step 5: Solve for x
    x = 593,007,376,878.32/760,834.43
  6. Step 6: Final answer
    x = 779,417.12

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1.5x scale

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.