Home / 860,001.60-1,290,002.40-434,848.80

Finding the Fourth Proportional to 860,001.60, 1,290,002.40 and 434,848.80

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Solution

The fourth proportional to 860,001.60, 1,290,002.40 and 434,848.80 is: 652,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,001.60 : 1,290,002.40 = 434,848.80 : x
  2. Step 2: Convert to fraction form
    860,001.60/1,290,002.40 = 434,848.80/x
  3. Step 3: Cross multiply
    860,001.60x = 1,290,002.40 × 434,848.80
  4. Step 4: Simplify right side
    860,001.60x = 560,955,995,637.12
  5. Step 5: Solve for x
    x = 560,955,995,637.12/860,001.60
  6. Step 6: Final answer
    x = 652,273.20

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Double scale
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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.