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Finding the Fourth Proportional to 710,565.24, 980,582.58 and 388,275.33

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Solution

The fourth proportional to 710,565.24, 980,582.58 and 388,275.33 is: 535,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,565.24 : 980,582.58 = 388,275.33 : x
  2. Step 2: Convert to fraction form
    710,565.24/980,582.58 = 388,275.33/x
  3. Step 3: Cross multiply
    710,565.24x = 980,582.58 × 388,275.33
  4. Step 4: Simplify right side
    710,565.24x = 380,736,024,841.75
  5. Step 5: Solve for x
    x = 380,736,024,841.75/710,565.24
  6. Step 6: Final answer
    x = 535,821.35

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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.