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Finding the Fourth Proportional to 567,598.40, 783,285.12 and 312,953.60

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Solution

The fourth proportional to 567,598.40, 783,285.12 and 312,953.60 is: 431,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,598.40 : 783,285.12 = 312,953.60 : x
  2. Step 2: Convert to fraction form
    567,598.40/783,285.12 = 312,953.60/x
  3. Step 3: Cross multiply
    567,598.40x = 783,285.12 × 312,953.60
  4. Step 4: Simplify right side
    567,598.40x = 245,131,898,130.43
  5. Step 5: Solve for x
    x = 245,131,898,130.43/567,598.40
  6. Step 6: Final answer
    x = 431,875.60

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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.