Finding the Fourth Proportional to 977,406.18, 1,348,818.75 and 595,432.95
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Solution
The fourth proportional to 977,406.18, 1,348,818.75 and 595,432.95 is: 821,696.39
Step by Step Solution
- Step 1: Write the proportion equation
977,406.18 : 1,348,818.75 = 595,432.95 : x - Step 2: Convert to fraction form
977,406.18/1,348,818.75 = 595,432.95/x - Step 3: Cross multiply
977,406.18x = 1,348,818.75 × 595,432.95 - Step 4: Simplify right side
977,406.18x = 803,131,127,327.81 - Step 5: Solve for x
x = 803,131,127,327.81/977,406.18 - Step 6: Final answer
x = 821,696.39
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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.