Home / 993,142.50-1,370,536.65-540,436.74

Finding the Fourth Proportional to 993,142.50, 1,370,536.65 and 540,436.74

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Solution

The fourth proportional to 993,142.50, 1,370,536.65 and 540,436.74 is: 745,802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,142.50 : 1,370,536.65 = 540,436.74 : x
  2. Step 2: Convert to fraction form
    993,142.50/1,370,536.65 = 540,436.74/x
  3. Step 3: Cross multiply
    993,142.50x = 1,370,536.65 × 540,436.74
  4. Step 4: Simplify right side
    993,142.50x = 740,688,359,176.52
  5. Step 5: Solve for x
    x = 740,688,359,176.52/993,142.50
  6. Step 6: Final answer
    x = 745,802.70

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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.