Finding the Fourth Proportional to 772,154.18, 1,065,612.11 and 445,345.66
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Solution
The fourth proportional to 772,154.18, 1,065,612.11 and 445,345.66 is: 614,599.70
Step by Step Solution
- Step 1: Write the proportion equation
772,154.18 : 1,065,612.11 = 445,345.66 : x - Step 2: Convert to fraction form
772,154.18/1,065,612.11 = 445,345.66/x - Step 3: Cross multiply
772,154.18x = 1,065,612.11 × 445,345.66 - Step 4: Simplify right side
772,154.18x = 474,565,727,537.23 - Step 5: Solve for x
x = 474,565,727,537.23/772,154.18 - Step 6: Final answer
x = 614,599.70
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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.