Home / 999,114.12-1,378,774.54-540,225.42

Finding the Fourth Proportional to 999,114.12, 1,378,774.54 and 540,225.42

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Solution

The fourth proportional to 999,114.12, 1,378,774.54 and 540,225.42 is: 745,509.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,114.12 : 1,378,774.54 = 540,225.42 : x
  2. Step 2: Convert to fraction form
    999,114.12/1,378,774.54 = 540,225.42/x
  3. Step 3: Cross multiply
    999,114.12x = 1,378,774.54 × 540,225.42
  4. Step 4: Simplify right side
    999,114.12x = 744,849,054,956.81
  5. Step 5: Solve for x
    x = 744,849,054,956.81/999,114.12
  6. Step 6: Final answer
    x = 745,509.49

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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.