Home / 840,421.46-1,159,774.14-458,440.04

Finding the Fourth Proportional to 840,421.46, 1,159,774.14 and 458,440.04

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Solution

The fourth proportional to 840,421.46, 1,159,774.14 and 458,440.04 is: 632,643.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,421.46 : 1,159,774.14 = 458,440.04 : x
  2. Step 2: Convert to fraction form
    840,421.46/1,159,774.14 = 458,440.04/x
  3. Step 3: Cross multiply
    840,421.46x = 1,159,774.14 × 458,440.04
  4. Step 4: Simplify right side
    840,421.46x = 531,686,903,132.57
  5. Step 5: Solve for x
    x = 531,686,903,132.57/840,421.46
  6. Step 6: Final answer
    x = 632,643.18

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Double scale
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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.