Home / 927,206.40-1,390,809.60-429,542.40

Finding the Fourth Proportional to 927,206.40, 1,390,809.60 and 429,542.40

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Solution

The fourth proportional to 927,206.40, 1,390,809.60 and 429,542.40 is: 644,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,206.40 : 1,390,809.60 = 429,542.40 : x
  2. Step 2: Convert to fraction form
    927,206.40/1,390,809.60 = 429,542.40/x
  3. Step 3: Cross multiply
    927,206.40x = 1,390,809.60 × 429,542.40
  4. Step 4: Simplify right side
    927,206.40x = 597,411,693,527.04
  5. Step 5: Solve for x
    x = 597,411,693,527.04/927,206.40
  6. Step 6: Final answer
    x = 644,313.60

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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.