Home / 712,681.60-1,066,948.80-432,054.40

Finding the Fourth Proportional to 712,681.60, 1,066,948.80 and 432,054.40

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Solution

The fourth proportional to 712,681.60, 1,066,948.80 and 432,054.40 is: 646,824.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,681.60 : 1,066,948.80 = 432,054.40 : x
  2. Step 2: Convert to fraction form
    712,681.60/1,066,948.80 = 432,054.40/x
  3. Step 3: Cross multiply
    712,681.60x = 1,066,948.80 × 432,054.40
  4. Step 4: Simplify right side
    712,681.60x = 460,979,923,614.72
  5. Step 5: Solve for x
    x = 460,979,923,614.72/712,681.60
  6. Step 6: Final answer
    x = 646,824.51

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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.