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Finding the Fourth Proportional to 529,809.80, 731,210.10 and 402,283.40

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Solution

The fourth proportional to 529,809.80, 731,210.10 and 402,283.40 is: 555,206.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,809.80 : 731,210.10 = 402,283.40 : x
  2. Step 2: Convert to fraction form
    529,809.80/731,210.10 = 402,283.40/x
  3. Step 3: Cross multiply
    529,809.80x = 731,210.10 × 402,283.40
  4. Step 4: Simplify right side
    529,809.80x = 294,153,685,142.34
  5. Step 5: Solve for x
    x = 294,153,685,142.34/529,809.80
  6. Step 6: Final answer
    x = 555,206.20

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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.