Finding the Fourth Proportional to 690,574.60, 953,139.99 and 464,088.88
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Solution
The fourth proportional to 690,574.60, 953,139.99 and 464,088.88 is: 640,541.47
Step by Step Solution
- Step 1: Write the proportion equation
690,574.60 : 953,139.99 = 464,088.88 : x - Step 2: Convert to fraction form
690,574.60/953,139.99 = 464,088.88/x - Step 3: Cross multiply
690,574.60x = 953,139.99 × 464,088.88 - Step 4: Simplify right side
690,574.60x = 442,341,670,442.31 - Step 5: Solve for x
x = 442,341,670,442.31/690,574.60 - Step 6: Final answer
x = 640,541.47
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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.