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Finding the Fourth Proportional to 570,526.36, 787,370.82 and 315,901.24

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Solution

The fourth proportional to 570,526.36, 787,370.82 and 315,901.24 is: 435,968.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,526.36 : 787,370.82 = 315,901.24 : x
  2. Step 2: Convert to fraction form
    570,526.36/787,370.82 = 315,901.24/x
  3. Step 3: Cross multiply
    570,526.36x = 787,370.82 × 315,901.24
  4. Step 4: Simplify right side
    570,526.36x = 248,731,418,377.82
  5. Step 5: Solve for x
    x = 248,731,418,377.82/570,526.36
  6. Step 6: Final answer
    x = 435,968.32

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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.