Home / 830,457.60-1,245,686.32-475,220.49

Finding the Fourth Proportional to 830,457.60, 1,245,686.32 and 475,220.49

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Solution

The fourth proportional to 830,457.60, 1,245,686.32 and 475,220.49 is: 712,830.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,457.60 : 1,245,686.32 = 475,220.49 : x
  2. Step 2: Convert to fraction form
    830,457.60/1,245,686.32 = 475,220.49/x
  3. Step 3: Cross multiply
    830,457.60x = 1,245,686.32 × 475,220.49
  4. Step 4: Simplify right side
    830,457.60x = 591,975,663,376.70
  5. Step 5: Solve for x
    x = 591,975,663,376.70/830,457.60
  6. Step 6: Final answer
    x = 712,830.69

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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.