Home / 712,440.60-1,066,328.10-553,810.20

Finding the Fourth Proportional to 712,440.60, 1,066,328.10 and 553,810.20

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Solution

The fourth proportional to 712,440.60, 1,066,328.10 and 553,810.20 is: 828,901.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,440.60 : 1,066,328.10 = 553,810.20 : x
  2. Step 2: Convert to fraction form
    712,440.60/1,066,328.10 = 553,810.20/x
  3. Step 3: Cross multiply
    712,440.60x = 1,066,328.10 × 553,810.20
  4. Step 4: Simplify right side
    712,440.60x = 590,543,378,326.62
  5. Step 5: Solve for x
    x = 590,543,378,326.62/712,440.60
  6. Step 6: Final answer
    x = 828,901.92

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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.