Home / 489,931.60-734,897.12-153,001.12

Finding the Fourth Proportional to 489,931.60, 734,897.12 and 153,001.12

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Solution

The fourth proportional to 489,931.60, 734,897.12 and 153,001.12 is: 229,501.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,931.60 : 734,897.12 = 153,001.12 : x
  2. Step 2: Convert to fraction form
    489,931.60/734,897.12 = 153,001.12/x
  3. Step 3: Cross multiply
    489,931.60x = 734,897.12 × 153,001.12
  4. Step 4: Simplify right side
    489,931.60x = 112,440,082,444.77
  5. Step 5: Solve for x
    x = 112,440,082,444.77/489,931.60
  6. Step 6: Final answer
    x = 229,501.59

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Double scale
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Similar ratio
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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.