Home / 840,401.52-1,159,762.48-458,436.30

Finding the Fourth Proportional to 840,401.52, 1,159,762.48 and 458,436.30

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Solution

The fourth proportional to 840,401.52, 1,159,762.48 and 458,436.30 is: 632,646.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,401.52 : 1,159,762.48 = 458,436.30 : x
  2. Step 2: Convert to fraction form
    840,401.52/1,159,762.48 = 458,436.30/x
  3. Step 3: Cross multiply
    840,401.52x = 1,159,762.48 × 458,436.30
  4. Step 4: Simplify right side
    840,401.52x = 531,677,220,210.02
  5. Step 5: Solve for x
    x = 531,677,220,210.02/840,401.52
  6. Step 6: Final answer
    x = 632,646.67

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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.