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Finding the Fourth Proportional to 615,344.66, 849,261.23 and 343,430.07

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Solution

The fourth proportional to 615,344.66, 849,261.23 and 343,430.07 is: 473,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,344.66 : 849,261.23 = 343,430.07 : x
  2. Step 2: Convert to fraction form
    615,344.66/849,261.23 = 343,430.07/x
  3. Step 3: Cross multiply
    615,344.66x = 849,261.23 × 343,430.07
  4. Step 4: Simplify right side
    615,344.66x = 291,661,841,950.04
  5. Step 5: Solve for x
    x = 291,661,841,950.04/615,344.66
  6. Step 6: Final answer
    x = 473,981.27

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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.