Home / 890,155.35-1,228,412.93-482,267.57

Finding the Fourth Proportional to 890,155.35, 1,228,412.93 and 482,267.57

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Solution

The fourth proportional to 890,155.35, 1,228,412.93 and 482,267.57 is: 665,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,155.35 : 1,228,412.93 = 482,267.57 : x
  2. Step 2: Convert to fraction form
    890,155.35/1,228,412.93 = 482,267.57/x
  3. Step 3: Cross multiply
    890,155.35x = 1,228,412.93 × 482,267.57
  4. Step 4: Simplify right side
    890,155.35x = 592,423,710,154.28
  5. Step 5: Solve for x
    x = 592,423,710,154.28/890,155.35
  6. Step 6: Final answer
    x = 665,528.45

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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.