Home / 525,495.20-788,242.80-315,543.20

Finding the Fourth Proportional to 525,495.20, 788,242.80 and 315,543.20

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Solution

The fourth proportional to 525,495.20, 788,242.80 and 315,543.20 is: 473,314.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,495.20 : 788,242.80 = 315,543.20 : x
  2. Step 2: Convert to fraction form
    525,495.20/788,242.80 = 315,543.20/x
  3. Step 3: Cross multiply
    525,495.20x = 788,242.80 × 315,543.20
  4. Step 4: Simplify right side
    525,495.20x = 248,724,655,488.96
  5. Step 5: Solve for x
    x = 248,724,655,488.96/525,495.20
  6. Step 6: Final answer
    x = 473,314.80

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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.