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Finding the Fourth Proportional to 540,547.50, 745,976.58 and 358,946.30

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Solution

The fourth proportional to 540,547.50, 745,976.58 and 358,946.30 is: 495,359.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,547.50 : 745,976.58 = 358,946.30 : x
  2. Step 2: Convert to fraction form
    540,547.50/745,976.58 = 358,946.30/x
  3. Step 3: Cross multiply
    540,547.50x = 745,976.58 × 358,946.30
  4. Step 4: Simplify right side
    540,547.50x = 267,765,533,277.65
  5. Step 5: Solve for x
    x = 267,765,533,277.65/540,547.50
  6. Step 6: Final answer
    x = 495,359.86

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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.