Finding the Fourth Proportional to 475,712.39, 712,281.40 and 348,387.99
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Solution
The fourth proportional to 475,712.39, 712,281.40 and 348,387.99 is: 521,639.30
Step by Step Solution
- Step 1: Write the proportion equation
475,712.39 : 712,281.40 = 348,387.99 : x - Step 2: Convert to fraction form
475,712.39/712,281.40 = 348,387.99/x - Step 3: Cross multiply
475,712.39x = 712,281.40 × 348,387.99 - Step 4: Simplify right side
475,712.39x = 248,150,281,718.36 - Step 5: Solve for x
x = 248,150,281,718.36/475,712.39 - Step 6: Final answer
x = 521,639.30
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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.