Finding the Fourth Proportional to 875,283.12, 1,207,890.90 and 472,875.12
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Solution
The fourth proportional to 875,283.12, 1,207,890.90 and 472,875.12 is: 652,567.77
Step by Step Solution
- Step 1: Write the proportion equation
875,283.12 : 1,207,890.90 = 472,875.12 : x - Step 2: Convert to fraction form
875,283.12/1,207,890.90 = 472,875.12/x - Step 3: Cross multiply
875,283.12x = 1,207,890.90 × 472,875.12 - Step 4: Simplify right side
875,283.12x = 571,181,554,284.41 - Step 5: Solve for x
x = 571,181,554,284.41/875,283.12 - Step 6: Final answer
x = 652,567.77
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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.