Finding the Fourth Proportional to 756,337,973.84, 1,043,746,405.90 and 408,657,461.84
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Solution
The fourth proportional to 756,337,973.84, 1,043,746,405.90 and 408,657,461.84 is: 563,947,298.42
Step by Step Solution
- Step 1: Write the proportion equation
756,337,973.84 : 1,043,746,405.90 = 408,657,461.84 : x - Step 2: Convert to fraction form
756,337,973.84/1,043,746,405.90 = 408,657,461.84/x - Step 3: Cross multiply
756,337,973.84x = 1,043,746,405.90 × 408,657,461.84 - Step 4: Simplify right side
756,337,973.84x = 426,534,757,039,716,352 - Step 5: Solve for x
x = 426,534,757,039,716,352/756,337,973.84 - Step 6: Final answer
x = 563,947,298.42
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Double scale
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Similar ratio
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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.